=========================================================================
CHANGE LOG
=========================================================================

2012-02-13 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Open Source PyMOL v1.5.0.1

	* improved rendering Performance

	* improved rendering Quality

	* bg_gradient now ray traces

	* improved cartoon support for non-standard nucleotides

	* surface color smoothing

	* surface-based picking

	* frame buffer-based antialiasing for real-time rendering

	* optimized anaglyph colors and intensities for an improved 3D
	viewing experience

	* real-time and ray-traceable ambient occlusion

	* molecular weight calculuations; A > Compute > Molceular Weight

	* selection generation A > Generate > Selection

	* new mouse mode for repositioning lights

	* many bug fixes

2012-01-03 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* improved callback rendering

	* improved cealign (thanks to Thomas Holder)

2011-12-16 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* fixed object creation when merging two objects; thanks to James
	Davidson for pointing out the error

2011-12-06 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* fixed get_mass

2011-12-05 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* fixed create to reorder IDs when combining objects; thanks to James
	Davidson.

2011-12-05 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Cleaned up 'fitting.py' (untabified)

	* alignto updated; can now take a method for alignment

	* cealign updated; made faster and cleaner; thanks to Thomas
	Holder for the ideas and patch

2011-10-05 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Added the get_viewport function and updated the viewport function

2011-10-05 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Added support for some non-standard nucleic acids (PSU)

2011-09-29 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fixed distance invalidation problem

2011-09-19 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Added Display > Roving Detail

	* Removed AttributeError on coloring volumes; needs better
	solution though

	* Added polar contacts/hydrogen bonds to the Measurement wizard

2011-09-19 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Doc fix

2011-09-16 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* PyMOL now respects the h_bond_from_proton setting

2011-09-08 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Added A > Generate > Selection > polar, non_polar,
	acceptor/donator options

2011-08-21 Jason Vertrees <Jason.Vertrees@schrodinger.com>

        * Fixed click-flash that happens when middle-clicking when
          showing the background gradient (thanks, Blaine)

        * Added A > Compute > Molecular Weight and cleaned up the
          compute menu in general

2011-08-15 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fixed a conversion bug in util.cbc; thanks Hongbo.

2011-07-26 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* one more fread

2011-07-26 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fixing bugs introduced by last commit for freads; and fixed another importing bug

2011-07-25 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fixing more warnings; opengl bindings work again; thanks to Jack
	Haworth for the patch

2011-07-20 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fixed lots of warnings on build; cleaning up code

2011-07-06 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Multi-model PDBs now write ENDMDL after models and END at end of file; thanks to Thomas Holder for the patch. 

2011-06-23 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Code cleaning; reducing number of warnings

2011-06-22 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Small state bugfix

	* Feedback bugfix

	* Updated TNT to 3.0b

2011-06-16 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* suppress guess valences warning message to Blather

2011-06-09 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* fixed volume shader; esp for Ubuntu

2011-06-08 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* "fix" for colored sticks problem

	* fixed File > Save Molecule using object's state

	* fog/shading in shaders

2011-05-18 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* bugfix for drawing ribbons, drastically increases their rendering (3x+)

2011-05-18 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* fixed a bug where group names were clipped

2011-05-18 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* fixed state bug in distances for (all)

	* fixed ray trace bug when not using Python

	* fixed nucleic acid residue naming (Thanks to Thomas Holder)

2011-05-12 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* more robust space group/pt group reading from maps

2011-05-02 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* fixed state bug in distances for (all)

	* fixed ray trace bug when not using Python

	* fixed nucleic acid residue naming (Thanks to Thomas Holder)

2011-05-02 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* fixed shader bug

	* v1.4.1 release

2011-04-20 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* finished the state counter

	* all measures now work inter-distance, and
	  honor object states

	* selecting/picking now works as we'd expect, with 
	  respect to states

	* improved shaders; added fog, fixed rendering issues

	* bug fix for possible crash

2011-04-20 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* freezing colors the states blue

	* added out of bounds checks for showing states; those
	  beyond are shown as "--"

2011-04-20 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* state_counter_mode

	* fixed bg_gradient coloring

	* added small dictionary for xray space groups

	* get_names and safe names 

2011-04-01 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* transparent ribbons

	* naive volume ray tracing; better version coming soon

	* small bug fixes

2011-04-01 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* introducing gradient backgrounds (non-ray tracing; testing)

	* Windows bug fixes

	* Rlight-click Volumes fix

2011-04-01 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* PyMOL v1.4b1 -- adds volumes, glew, shaders, bug fixes, etc

2011-02-03 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Added PyMOL Web Services API; for information run
	  firefox pymol/modules/web/examples/index.html

2011-01-18 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Cygwin build fix (thanks Alex)

2011-01-18 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* mol2 atom types

2011-01-11 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* mol2 multi-state save bugfix

2011-01-11 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* added mol2.py
	* File->Save Moleulce

2011-01-11 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* nascent mol2 writing

2011-01-11 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* removed duplicate function; thanks Thomas

2011-01-03 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fixed multi-state ray trace bug for CGO objects

2010-10-13 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fixed Glutamine label problem in Residue menu; now ALT-Q.

2010-10-13 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Trajectory fix

2010-10-08 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* charge wizard fix


2010-10-06 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* memory fix on angles and dihedrals

	* documentation update on cealign


2010-10-02 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fully implemented dynamic measures; enable by turning on
	"dynamic_measures"--disabled by default for testing

	* Setting for surface residues


2010-10-02 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Measurement wizard dihedral fix


2010-09-23 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fixed degenerate super bug.


2010-08-12 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fixed the map fetching, again.


2010-08-12 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Added visibililty flag for Measurement Wizard


2010-08-11 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Fixed small bug with fetch.

	* Moved surface area calculations to Compute > Surface area; these values still need to be validated!

	* A > Action > Generate > Selection > Surface Residues

	* New "surface_residue_cutoff" setting

	* Removed one redundant option from Measurement wizard

	* Added C > Color > Element > 6/H now colors by hydrogens, not carbons

	* Yay for the new PyMOL website!


2010-08-05 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* Better support for biological units.


2010-08-05 Jason Vertrees <Jason.Vertrees@schrodinger.com>
	
	* For r1.3r1 (mostly due to fetch command)

	* filtering on File > Save Molecule

	* Mouse modes now tracked on measurement wizard

	* Measurement wizard has surface area (beta!)

	* typos

	* fixed and cleaned up the fetch command


2010-05-28 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* dynamic_measures setting, for dynamic distances
	
	* more complete neighbor finding and concomitant settings:
		- neighbor_cutoff
		- polar_neighbor_cutoff
		- heavy_neighbor cutoff

	* versioning

	* new (internal) build system


2010-03-24 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* fixed a cealign bug

	* added 'alignto' command back in

2010-03-24 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* fetch_host setting (use 'pdb', 'pdbe', or 'pdbj')

	* map fetching from EDS (eg. fetch 1cll, async=0; fetch 1cll, type=2fofc; fetch 1cll, type=fofc)

2010-02-18 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* label_anchor setting

2010-02-16 Jason Vertrees <Jason.Vertrees@schrodinger.com>

	* movie_quality setting

	* copyright notices and install paths

2009-06-14 Warren L. DeLano <warren@delsci.com>	

	* motions 
	
2009-06-14 Warren L. DeLano <warren@delsci.com>	

	* reduced Z scale sensitivity and added mouse_z_scale setting
	
2009-06-14 Warren L. DeLano <warren@delsci.com>	

	* reindented source code using GNU indent for better readability 
	
	* ugly workarounds added for Radeon HD hardware -- warns user
	
2009-06-10 Warren L. DeLano <warren@delsci.com>	

	* updated the density wizard to reflect the current API

2009-06-09 Warren L. DeLano <warren@delsci.com>	

	* fixed rounding error bug with symmetry expansion of maps.
	
2009-05-18 Warren L. DeLano <warren@delsci.com>	

	* pseudoatom labeling via main menu right-click
	
2009-05-13 Warren L. DeLano <warren@delsci.com>	

	* fixed bug with names containing 'model' in selection macros
	
2009-05-11 Warren L. DeLano <warren@delsci.com>	

	* experimental movie_panel setting

	* changed internal_gui_mode=0 appearance again
	
2009-05-03 Warren L. DeLano <warren@delsci.com>	

	* fixed internal_gui_mode, 1 and 2; added 2 rows to viewer window
	
	* fixed bond color problem from maestro
	
	* fixed 'ace' builder bug

2009-04-28 Warren L. DeLano <warren@delsci.com>	

	* fixed ramp bug for transformed maps

2009-04-26 Warren L. DeLano <warren@delsci.com>	
	
	* fixed bug with clicking on the sphere representation
	
2009-04-10 Warren L. DeLano <warren@delsci.com>	

	* changed 'import pymol' behavior to defer launch until
          finish_launching is actually called
	
	* added warnings for pml/py/pym run/@ confusion

2009-04-09 Warren L. DeLano <warren@delsci.com>	

	* added bycell selection operator
	
2009-03-26 Warren L. DeLano <warren@delsci.com>	

	* acnt map support
	
	* fixed bug with selection argument to cmd.get_names
	
2009-03-23 Warren L. DeLano <warren@delsci.com>	

	* fixed problem unintentionally quashing "+" from filenames
	
	* fixed selector bug parsing one+object as two + object

	* added " + " selection operator to mitigate impact of bug
	  and added " - " operator to provide complement to " + "
	
2009-03-21 Warren L. DeLano <warren@delsci.com>	

	* added simple fasta output
	
	* fixed major bug with 'domain' argument to select
		
	* greatly improved the performance of the peptide builder

	* fab command
	
2009-03-20 Warren L. DeLano <warren@delsci.com>	

	* very rough FASTA & ALN read support (full peptide builds)
	
2009-03-14 Warren L. DeLano <warren@delsci.com>	

	* updated the vmd molfile plugin code from current UIUC cvs

	* addressing various strict-aliasing issues for GCC
	
2009-03-13 Warren L. DeLano <warren@delsci.com>	

	* field_of_view now interpolated via get_view/set_view matrix
	  (appears to be backwards & forwards compatible)
	
2009-03-11 Warren L. DeLano <warren@delsci.com>	

	* front and back colors, label_color now defaults to front
	
	* fixed object duplication deadlock bug

	* show_frame_rate setting
	
	* valence_mode=1 setting for nicer valence display
	
2009-03-10 Warren L. DeLano <warren@delsci.com>	

	* dynamic_width settings and defaults
	
2009-03-06 Warren L. DeLano <warren@delsci.com>	

	* addressed problem reading mmod files
	
2009-02-08 Warren L. DeLano <warren@delsci.com>	

	* refactored multisave commmand

	* improved read-in performance for concatenated PDB files
	
2009-02-08 Warren L. DeLano <warren@delsci.com>	

	* fixed stupid load-from-URL bug...
	
	* GZ compression support for common input formats
	
	* confirmed DLP Stereo 3D support

	* fixed ray-tracing for checkboard, byrow, & bycolumn stereo 3D
	
2009-02-06 Warren L. DeLano <warren@delsci.com>	

	* saving .dat and .out now also default to mmod format
	
	* extensive reworking of stereo 3D code to enable new encodings
	
2009-01-14 Warren L. DeLano <warren@delsci.com>

	* found & fixed longstanding issue with psize.py in APBS plugin
	
	* eliminated alternative conformation identifiers from PQR files
	
2009-01-09 Warren L. DeLano <warren@delsci.com>

	* added PyMOL> prompt to the Tk Window

	* addressed a couple of minor file saving issues
	
2009-01-05 Warren L. DeLano <warren@delsci.com>

	* removing old X11-hybrid kludge, fixed a few python issues
	
	* default .mpg extension handling for MPEG export
	
2009-01-02 Warren L. DeLano <warren@delsci.com>

	* fixed click-through toggle for Leopard

2009-12-31 Warren L. DeLano <warren@delsci.com>

	* various changes associated with getting 1.2b0 out the door
	
2008-12-23 Warren L. DeLano <warren@delsci.com>

	* fixed tk-based session save problems reported by DB
	
2008-12-16 Warren L. DeLano <warren@delsci.com>

	* fixed another object-name-dragging bug
	
	* mpeg1 export menu item

	* fixed putty scaling bugs
	
2008-12-14 Warren L. DeLano <warren@delsci.com>

	* added support for writing ppm files (awkwardly: via png)
	
2008-12-13 Warren L. DeLano <warren@delsci.com>

	* added error message for when align/super atom alignment fails
	
2008-12-07 Warren L. DeLano <warren@delsci.com>

	* fixed split_states behavior to allow prefix to override titles
	
2008-12-07 Warren L. DeLano <warren@delsci.com>

	* updated pymol/__init__.py OpenGL autoconfiguration
	
2008-12-04 Warren L. DeLano <warren@delsci.com>

	* continued major overhaul of the builder

	* fixed longstanding object name right-dragging bugs
	
2008-11-29 Warren L. DeLano <warren@delsci.com>

	* various updates to the builder
	
	* auto_overlay setting

	* stick_ball_color, stick_h_scale settings

	* added support for negative stick_radius, stick_ball_ratio
	
2008-11-22 Warren L. DeLano <warren@delsci.com>

	* fixed incompatibility with Roche Pocket Viewer
	
2008-11-12 Warren L. DeLano <warren@delsci.com>

	* added max_ups setting to govern excessive geometry flux
		
2008-11-10 Warren L. DeLano <warren@delsci.com>

	* further work on the builder
	
	* sculpting engine now respects atom flag 3 (fixed atoms)
	
2008-11-05 Warren L. DeLano <warren@delsci.com>

	* added Mac-only menu for configuring X11 click-through behavior
	
	* updated open-source splash image

2008-10-04 Warren L. DeLano <warren@delsci.com>

	* first rough attempt at IDTF export for U3D / 3D-PDF support
	
2008-09-29 Warren L. DeLano <warren@delsci.com>

	* fixed subtle div-zero bug in the view interpolation code
	
2008-09-24 Warren L. DeLano <warren@delsci.com>

	* fixed crash bug with blank CGO object

2008-09-12

	* added menu option & mechanism for removing plugins

	* fixed bugs with defer_builds_mode 5
	
2008-09-12 Warren L. DeLano <warren@delsci.com>	

	* added multipled FSAA to MacPyMOL
	
	* added experimental defer_builds_mode 5 for trajectory viewing
	
2008-09-07 Warren L. DeLano <warren@delsci.com>

	* improved ability to write images asynchronously as a web server
	
2008-09-05 Warren L. DeLano <warren@delsci.com>

	* fixed a couple of bugs introduced when making changes below
	
2008-08-22 Warren L. DeLano <warren@delsci.com>

	* addressed some performance issues with byres, bychain, & byseg
	
	* added a new cookbook example for a composited multi-clip 
	raytraced image examples/cookbook/multiclip_ray.pml
	
2008-08-21 Warren L. DeLano <warren@delsci.com>

	* fixed indexes output by get_raw_alignment: now 1-based

	* added new cookbook example for grafting selections across
	alignments: examples/cookbook/seq_match_sele.pml

2008-08-04 Warren L. DeLano <warren@delsci.com>

	* added map_auto_expand_sym setting to optionally prevent expansion
	
	* fixed problems with out-of-order execution with pasted scripts
	
2008-07-28 Warren L. DeLano <warren@delsci.com>

	* added support for apbs provided as part of FreeMOL
	
2008-07-25 Warren L. DeLano <warren@delsci.com>

	* fixed problem with scene name completion
	
	* added buttons options to the scene menu

	* fixed major bug in scene_order command
	
2008-07-24 Warren L. DeLano <warren@delsci.com>

	* added scene_buttons, scene_buttons_mode
	
	* fixed bug found in the previous implicit OR bug fix
	
	* fixed bug with unitialized memory in surfacing routines
	
2008-07-23 Warren L. DeLano <warren@delsci.com>

	* fixed bugs with transparency and interior color
	
	* nonbonded_tranpsparency now works per atom for nb_spheres
	
2008-07-22 Warren L. DeLano <warren@delsci.com>

	* fixed improper selection behavior for wizard with sequence view
	
2008-07-21 Warren L. DeLano <warren@delsci.com>

	* continued work on the builder
	
	* Added "Abort" and "Rebuild" buttons on the external GUI
	
2008-07-16 Warren L. DeLano <warren@delsci.com>

	* in the process of overhauling builder

	* added support for mengine as part of the "freemol" package
	
2008-07-08 Warren L. DeLano <warren@delsci.com>

	* fixed order-of-operations bug with implicit OR in selections
	
2008-07-06 Warren L. DeLano <warren@delsci.com>

	* fixed alignment/superposition crash bug
	
2008-06-20 Warren L. DeLano <warren@delsci.com>	

	* fixed problem launching browser under Mac OS X / X11

	* updated the MacPyMOL UI & fixed various glitches

	* added a Grid section to the Display menu

2008-06-17 Warren L. DeLano <warren@delsci.com>	

	* added support for multiple objects/selections in save dialog
	
2008-06-16 Warren L. DeLano <warren@delsci.com>	

	* fixed missing define when building via autotools

	* improved compatibility when building under OSX/X11 w/o Fink
	
2008-06-01 Warren L. DeLano <warren@delsci.com>	

	* session_cache_optimize setting

	* fixed cache optimize

	* added Ctrl-Fkey and Ctrl-PgDn/Up support inside Tcl/Tk
	
2008-05-31 Warren L. DeLano <warren@delsci.com>	

	* updated help menu

	* mouse_grid setting
	
2008-05-28 Warren L. DeLano <warren@delsci.com>	

	* added mesh_cutoff and related mesh settings 

	* added mouse_grid setting for hiding the mouse/keyboard info
	
2008-05-28 Warren L. DeLano <warren@delsci.com>	

	* finished .MAE reader (at least for now...)

	* quashed race conditions associated with the geometry cache
	
2008-05-22 Warren L. DeLano <warren@delsci.com>	

	* create copies object color if source atoms are from one object
	
2008-05-21 Warren L. DeLano <warren@delsci.com>	

	* valence command enhanced for guessing & copying valences
	
2008-05-20 Warren L. DeLano <warren@delsci.com>	

	* now assumes HETATM c1ccnc1 is c1ccn[H]c1
	
2008-05-19 Warren L. DeLano <warren@delsci.com>	

	* skins now working better
	
2008-05-15 Warren L. DeLano <warren@delsci.com>	

	* increased surface generation performance
	
2008-05-09 Warren L. DeLano <warren@delsci.com>	

	* new setting: geometry_export_mode partially implemented
	
	* initial 3Dconnexion SpaceNavigator support for Mac (others coming)
	
2008-05-02 Warren L. DeLano <warren@delsci.com>	

	* fixed nasty crash bug with distance command & multistate objs
	
	* incorporated various fixes for pymol2.PyMOL instances.
	
2008-05-01 Warren L. DeLano <warren@delsci.com>	

	* converted color names storage over to a dictionary (lexicon)

	* fixed bug with color redefinition in the external gui
	
2008-04-30 Warren L. DeLano <warren@delsci.com>	

	* more fixes for Vista compatibility
	
2008-04-25 Warren L. DeLano <warren@delsci.com>	

	* capture command/method for obtaining the entire OpenGL window
	
	* adjusted save behavior so that selections exclusively comprised
	  of static singleton atoms are written out even when the global
	  state index is not unity
	
	* changed behavior of multiplex=0 option for concatenated PDBs
	
2008-04-23 Warren L. DeLano <warren@delsci.com>	

	* made additional tweaks to command flushing
	
2008-04-23 Warren L. DeLano <warren@delsci.com>	

	* fixed more logging-related bugs

	* optimized command-queue flushing for better performance

2008-04-19 Warren L. DeLano <warren@delsci.com>	

	* added support for PDB formal charges.
	
2008-04-17 Warren L. DeLano <warren@delsci.com>	

	* fixed bug with GL_BLEND for distance labels

	* repaired proper logging for various selection-related actions

	* migrated to session-based storage for the measurement wizard
	
2008-04-16 Warren L. DeLano <warren@delsci.com>	

	* tweaked behaviors for better ActiveX usage

	* ESC now exits presentation mode (instead of toggling text)
	
2008-04-12 Warren L. DeLano <warren@delsci.com>	

	* added new movie program menus
	
2008-04-11 Warren L. DeLano <warren@delsci.com>	

	* added vdw radii for additional elements
	
	* fixed problem with saving session/show file ext on Windows.
	
2008-04-04 Warren L. DeLano <warren@delsci.com>	

	* fixed exception on windows when home directory is inaccessible
	
2008-03-31 Warren L. DeLano <warren@delsci.com>	

	* scene_order command 
	
	* improved hash compatibility for cached surfaces
	
	* $PYMOL_DATA now used instead of $PYMOL_PATH for align matrix
	
2008-03-28 Warren L. DeLano <warren@delsci.com>	

	* Cleaned up a launch issue under Centos 4.5

	* Accomodating default Gnome Panel window positioning under Linux
	
2008-03-27 Warren L. DeLano <warren@delsci.com>	

	* Fixed quirky group-dragging behavior
	
2008-03-26 Warren L. DeLano <warren@delsci.com>	

	* Eliminated a longstanding GC bug (problematic on 64bit/py251)
	
2008-03-22 Warren L. DeLano <warren@delsci.com>	

	* Fixed bugs with label sizes & positions in orthoscopic mode

2008-03-22 Warren L. DeLano <warren@delsci.com>	

	* PTR, SEP, TPO now included in alignments
	
2008-03-12 Warren L. DeLano <warren@delsci.com>	

	* cones are now working (flat-capped only...)
		
2008-03-09 Warren L. DeLano <warren@delsci.com>	

	* added Movie->Program submenus and make other changes to Movie

	* updated buttons in upper right panel -- added 'orient' button
	
	* movie_rock modified so as to defer to rock setting by default
	
	* reduced Tcl/Tk pause on startup from 1 sec to 0.1 sec
	
	* rock setting (replaces hardcoded Control->Rocking property)
	
2008-03-08 Warren L. DeLano <warren@delsci.com>	

	* added "modal" draw loop to deal with Windows GL update bugs
	
2008-03-07 Warren L. DeLano <warren@delsci.com>	

	* added cartoon_putty_transform setting for comparison tasks
		
2008-02-24  Warren L. DeLano <warren@delsci.com>	

	* select now applies validate_object_names to selection name
	
2008-02-23  Warren L. DeLano <warren@delsci.com>	

	* fixed a fitting bug with degenerate cases

	* various activex compatibility fixes integrated over past weeks
	
2008-02-05  Warren L. DeLano <warren@delsci.com>	

	* eliminated rare but serious bug with fog plus selections
	
2008-01-31  Warren L. DeLano <warren@delsci.com>	

	* grid_slot experimental setting
	
	* grid_mode 2 for viewng multiple states
	
2008-01-30  Warren L. DeLano <warren@delsci.com>	

	* grid_mode 1 for viewing multiple objects 
	
	* dash_color, angle_color, dihedral_color settings
	
	* surface_mode 3 and 4 added (thanks Nidhi!)
	
2008-01-29  Warren L. DeLano <warren@delsci.com>	

	* added experimental surface caching implementation

	* cache_mode experimentation setting
	
2008-01-28  Warren L. DeLano <warren@delsci.com>	

	* fixed minor compatibility bug with vrml (shininess value)
	
	* addressed performance issue when changing representations
	     for large objects with many states (e.g. 1sva.pdb1)
	
2008-01-24  Warren L. DeLano <warren@delsci.com>	

	* spacebar now advances scene when in presentation mode
	
2008-01-20  Warren L. DeLano <warren@delsci.com>	

	* additional work towards multiple PyMOLs in one Python.
	
2008-01-18  Warren L. DeLano <warren@delsci.com>	

	* improved Python 2.5 / 64-bit compatibility (PyDict_Next, etc.)

	* migrated to numpy
	
2008-01-18  Warren L. DeLano <warren@delsci.com>	

	* extensive refactoring for PyMOL2 & ActiveX
	
2008-01-16  Warren L. DeLano <warren@delsci.com>	

	* fixed surface_type=1, broken in the previous beta

	* refactored molecular surfacing routines 
	
2008-01-15  Warren L. DeLano <warren@delsci.com>	

	* ExtensionClass & sglite broke on 64 bit with Python 2.5.1 so
	  they have been replaced with simple Python symmetry tables.
	
2008-01-02  Warren L. DeLano <warren@delsci.com>	

	* added automatic xtal symm expansion for maps about molecules
	
2007-12-15  Warren L. DeLano <warren@delsci.com>	

	* rock now works within movies
	
	* movie_rock setting 	
	
2007-12-11  Warren L. DeLano <warren@delsci.com>	

	* anisotropic temperature factors now "u_aniso" in chempy model.
	
2007-12-10  Warren L. DeLano <warren@delsci.com>	

	* fixed object name validation for "create" 
	
2007-12-06  Warren L. DeLano <warren@delsci.com>	

	* first CIF reading code (barely functional)
	
2007-12-05  Warren L. DeLano <warren@delsci.com>	

	* anisotropic B factors now preserved in session files
	
	* cartoon_ladder_mode, cartoon_ladder_color, cartoon_ring_color,
	  cartoon_ring_width, cartoon_ring_radius, cartoon_ladder_radius
	  can all now be set per-atom (per-residue, really)

2007-12-04  Warren L. DeLano <warren@delsci.com>	

	* added additional workaround for reading tricky PQR files

	* cartoon_ring_mode can now be set per-atom (per-residue, really)

2007-11-30  Warren L. DeLano <warren@delsci.com>	

	* ANISOU records now supported in PDB files

        * ellipsoid representation (show ellipsoid, if ANISOU provided)

2007-11-29  Warren L. DeLano <warren@delsci.com>	

	* restored Tcl8.3 compatibility with file open
	
2007-11-28  Warren L. DeLano <warren@delsci.com>	

	* added support for simple raster3d ellipsoids (rastep compat.)
	
2007-11-27  Warren L. DeLano <warren@delsci.com>	

	* warning added for attempted bond creation between objects
	
2007-11-19  Warren L. DeLano <warren@delsci.com>

	* validated binary GRD reader (versus GVIEW with .kont files)
	
	* fixed crash bug with errorneous pseudoatom input
	
2007-11-16  Warren L. DeLano <warren@delsci.com>

	* fixed bug in binary .grd reader code (or NOT...still unclear)
	
2007-11-11  Warren L. DeLano <warren@delsci.com>

	* retain_order is now object-specific

	* restricted geom rebuilds after mask
	
2007-10-31  Warren L. DeLano <warren@delsci.com>

	* added a couple of new CGO examples
	
2007-10-30  Warren L. DeLano <warren@delsci.com>

	* direct SDF output for single and multi-state objects
	
2007-10-29  Warren L. DeLano <warren@delsci.com>

	* added workaround for writing PQR files with long coordinates
	
2007-10-29  Warren L. DeLano <warren@delsci.com>

	* improved memory consumption when rendering lots of triangles
	
2007-10-28  Warren L. DeLano <warren@delsci.com>

	* implemented changed to help support MAEstro format

	* colorspaces now apply to ramps as well
	
2007-10-24  Warren L. DeLano <warren@delsci.com>

	* quashed session save bug discovered by GT (PyNone refcnting)
	
2007-10-22  Warren L. DeLano <warren@delsci.com>
  	
	* fixed command synchronization problem with async pdb fetch
	
2007-10-17  Warren L. DeLano <warren@delsci.com>

	* incorporated various changes for improved JyMOL capabilities
	
2007-10-15  Warren L. DeLano <warren@delsci.com>

	* improved behavior of blended ramps based on atomic distances
	
	* added map-related methods to the PyMOL_* internal C-API
	
2007-10-05  Warren L. DeLano <warren@delsci.com>

	* fixed some issues regarding .MAE support
	
	* added support for multistate XYZ files
	
2007-09-26  Warren L. DeLano <warren@delsci.com>

	* bug fix with auto_defer_builds

	* can now open multiple files at once (tcl/tk file open)
	
2007-09-24  Warren L. DeLano <warren@delsci.com>

	* added auto_defer_builds setting
	
	* fixed performance bug w/ large discrete objects (10^3 states)
	
2007-09-20  Warren L. DeLano <warren@delsci.com>

	* fixed starup problem with "Documents" folder on Windows Vista
	
2007-09-06  Warren L. DeLano <warren@delsci.com>

	* added -k option to suppress use of .pymolrc, etc.
	
2007-09-04  Warren L. DeLano <warren@delsci.com>

	* eliminated some performance bottlenecks affecting virtualized
	  OpenGL contexts with texture_fonts enabled
	
2007-08-30  Warren L. DeLano <warren@delsci.com>

	* fixed VRML2 normals for rotated views (thanks Aaron Bryden!)
	
2007-08-29  Warren L. DeLano <warren@delsci.com>

	* fixed mistake with new double-hypen argument parsing
	
	* fixed problem with windows HOMEPATH ending in backslash
	
2007-08-28  Warren L. DeLano <warren@delsci.com>

	* added ramp_blend_nearby_colors setting (for LigandScout-like
    	  coloring via ramps)
	
	* movie_animate_by_frame setting controls whether animations
	  are interpolated based on wall-clock or movie time

	* added support for smooth camera interpolation within movies
	  (using scenes, views, animate options, etc.) for mpng, etc.

2007-08-26  Warren L. DeLano <warren@delsci.com>

	* added store_defaults & related options to reinitialize command
	
2007-08-25  Warren L. DeLano <warren@delsci.com>

	* implemented auto_rename_duplicate_objects setting
		
2007-08-24  Warren L. DeLano <warren@delsci.com>

	* added ellipsoid_quality and cgo_ellipsoid_quality settings
	
	* added CGO ellipsoids
	
2007-08-15  Warren L. DeLano <warren@delsci.com>

	* implemented some fixes to deal with new PDB nomenclature
	
	* now guessing approximate valences for PDB hetatm ligands in
	  order to improve hydrogen-bond display (setting:
	  pdb_hetatm_guess_valences) -- the guesses are often
	  wrong but are much better than nothing!
	
	* added sys.stdout.writelines emulation	
	
2007-08-14  Warren L. DeLano <warren@delsci.com>

	* sys.argv if not definied, now set using __main__.pymol_argv
	
	* added util.cnc keyword (formerly just an api function)
	
2007-08-02  Warren L. DeLano <warren@delsci.com>

	* incorporated Michael Lerner's suggestion for argument handling
	    pymol -c script.py --do=something --when=now
	    sys.argv = [ 'script.py', '--do=something' , '--when=now' ]
	
2007-07-30  Warren L. DeLano <warren@delsci.com>

	* fixed memory leak with gradients
	
2007-07-25  Warren L. DeLano <warren@delsci.com>

	* fixed bug with command-line rendering with groups 
			
	* worked-around problem with .MOE triple-bond valence info

	* fixed bug in .MOE reader with duplicate graphics object names

2007-07-23  Warren L. DeLano <warren@delsci.com>

	* fixed bug (mostly) harmless bug unpacking colors from sessions
	
	* fixed problems with box selecting when using non-default stereo
	parameters
	
2007-07-18  Warren L. DeLano <warren@delsci.com>

	* fixed problems with atomic picking when using non-default
	stereo parameters
	
2007-07-09  Warren L. DeLano <warren@delsci.com>

	* DrgO mouse action added

	* PyMOL 1.0 branch created
	
2007-07-08  Warren L. DeLano <warren@delsci.com>

	* fixed atom picking in stereo modes with customized parameters
	
	* adjusted idle behavior when playing movies, sculpting, etc.

	* added new selection operators: masked and protected

2007-07-03  Warren L. DeLano <warren@delsci.com>

	* select no longer 
	
	* missing more changelogs!

2007-06-21  Warren L. DeLano <warren@delsci.com>

	* issued PyMOL 1.0, with updates to the help menu

	* updated numerous command entries in code for online support
	
	* missing ChangeLog entries for the past few weeks...ugh.
	
2007-05-30  Warren L. DeLano <warren@delsci.com>

	* align command now has default max_gap of 50 (for performance)
	
	* various updates to the sequence viewer to improve behavior
	
	* added "super" command to enable more robust alignments
	
2007-05-29  Warren L. DeLano <warren@delsci.com>

	* added hide_long_bonds setting to help with animating rxns
	
	* fixed problem reading NMR structures with HETATM/CONECT combo
	
2007-05-27  Warren L. DeLano <warren@delsci.com>

	* fixed map_set "average" action (which was broken..)
	
2007-05-24  Warren L. DeLano <warren@delsci.com>

	* subtle change to the behavior of "create": only atoms present in
	  the source state are added to the target object
	
	* discovered and corrected flaw in state-based selection handling
	
2007-05-20  Warren L. DeLano <warren@delsci.com>

	* adjusted performance, idle, and framerate measuring
	
2007-05-20  Warren L. DeLano <warren@delsci.com>

	* added global transparency sort
	
2007-05-16  Warren L. DeLano <warren@delsci.com>

	* fixed mpng export
	
	* cObjectDist now cObjectMeasurement (no C names/files renamed)
		
	* additional show/hide menu options for measurement objects
	
2007-05-16  Warren L. DeLano <warren@delsci.com>

	* fixed bug with selection modification menus
	
2007-05-14  Warren L. DeLano <warren@delsci.com>

	* fixed enable with selection-expression arguments
	
2007-05-10  Warren L. DeLano <warren@delsci.com>

	* added PyMOL_CmdCreate
	
2007-05-09  Warren L. DeLano <warren@delsci.com>

        * modified create to allow shifted multi-state object creation
	
2007-05-06  Warren L. DeLano <warren@delsci.com>

	* damage control galore... many bugs created, many bugs quashed.
	
2007-05-05  Warren L. DeLano <warren@delsci.com>

	* created some basic tests cases for use of multiple instances
	
	* support for multiple PyMOL instances now largely complete

2007-05-04  Warren L. DeLano <warren@delsci.com>

	* fixed various GUI annoyances
	
	* fixed scene insert before/after actions

	* fixed mpng command-line action

	* OVERHAULED the Python/C API to reduce global state

	* REFACTORED cmd.py into a number of new .py files

2007-05-03  Warren L. DeLano <warren@delsci.com>

	* converted parser to instance-based while retaining global use
	
	* continued work on PyMOL as a Python object
	
2007-05-01  Warren L. DeLano <warren@delsci.com>

	* threads limit increased to 32 
	
2007-04-30  Warren L. DeLano <warren@delsci.com>

	* starting to reduce global Python state, enable PyMOL objects
	
	* fixed near_to selection operator
	
	* enabled per-state geometric criteria (within, expand, etc.)
	
	* added state and domain options to the select command
	
2007-04-23  Warren L. DeLano <warren@delsci.com>

	* added state=-1 and state=0 options for alter_state
	
2007-04-22  Warren L. DeLano <warren@delsci.com>

	* fixed pdb_unbond_cations for automatic bond detection
	
	* fixed static_singletons for distance objects
	
2007-04-21  Warren L. DeLano <warren@delsci.com>

	* fixed wrapping problems for movies & objects
	
	* fixed "mview reset" for object matrices
	
2007-04-18

	* fixed bug with aligning selections using the menus
	
2007-04-03  Warren L. DeLano <warren@delsci.com>

	* ray option to png
	
2007-04-01  Warren L. DeLano <warren@delsci.com>

	* unsupported surface_types: 4,5 ->5,6; 4 now related to 3
	
	* fixed mouse_wheel_scale bug
	
2007-03-30  Warren L. DeLano <warren@delsci.com>

	* modified multithreaded async_builds to improve parallelism
	
2007-03-24  Warren L. DeLano <warren@delsci.com>

	* allow blank argument values in the command parser 

	* added skip argument to python block command
	
2007-03-23  Warren L. DeLano <warren@delsci.com>

	Changes up to 1.00b19

	* minor changes to better comply with GNU Build System: CHANGES is
	now ChangeLog, also added NEWS, COPYING, AUTHORS.

	* added autoconf-based build (for in-place install only) -- just
	Linux for starters missing macros for Mac OS X / X11 / Fink.
	
	* renamed all Makefile to Makefile.delsci in order to make room
	for an autoconf-based build

	* fixed bug with scenes in interpolated views
    
	* pymol now draws h_bonds from proton to acceptor if proton
	present and provided that h_bond_from_proton setting is true

	* ray_scatter setting (gives a nice increase in image realism)

	* ray_trace_trans_cutoff, ray_trace_persist_cutoff settings

	* improved transparency model with ray_transparency_oblique

	* alignment objects now created by alignment menus

	* support for scenes in interpolated views (wow that is cool).

	* new movie_fps setting subordiantes movie_delay

	* support for session file compression
        (default off for backwards compatibility)

Changes up to 1.00b16-18

	* fixed shadow transparency for per-atom triangle transparency

	* partial session saves & restores (objects only)

	* group members starting with internal ._ are now hidden too

	* group_arrow_prefix setting

	* new 'extract object' item in selection menus

	* fixed scroll bar bug with groups
    
	* fixed ray_trace_mode bug (bp099)

	* object:group now returned

	* ray_trace_color setting

	* switched from Vera to DejaVu fonts in order to get symbols.

	* dot representation for quick previewing of map contents

	* "gradient" command for visualizing maps as gradient fields

	* "reinitialize settings" for global & object settings (only, for
	now)

	* fixed mesh_type = 1 for molecular objects

	* fixed bug when rendering spheres alone

Changes up to 1.00b15

	* fixed bug with dragging back clip plane (bp099)

	* fixes for proprietary code (.MOE file reading & embedding)

Changes up to 1.00b14

	* matrix handling for groups

	* bug fixes for matrix_mode=1, but more remain so 0 stays the
	default

	* improvements to the mutagenesis wizard (caps, charges, &
	hydrogens).

	* fixed serious reference-thrashing flaw in the molecular editor

Changes up to 1.00b13

	* fixed geometry-based atom selection processing bug for last
	small objects

	* support for some Gaussian cube files (orthognal
	cartesian-aligned)

	* pseudoatoms

	* fixed some logging bugs (yet many more remain...)

	* fixed 'fetch' and the Remote PDB Loader plugin

Changes up to 1.00b12

	* groups

	* fixed bond setting selection processing issue

	* fixed memory leak in surface algorithm (bp099)

	* fixed session file chaining bug on Windows

Changes up to 1.00b11

	* fixed stick_ball / transparency bug

Changes up to 1.00b10

	* label_digits settings

	* surface_negative_visible and _color settings

	* mesh_negative_visible and _color settings

Changes up to 1.00b09

	* ray_label_specular setting

	* mesh_skip setting

	* bug fix for label scaling (bp099)

	* bug fix for ramp_new

Changes up to 1.00b07

	* fixed normal refinement glitch
 
	* fixed cartoon assignment for objects without a state 0
 
	* bug fixes for surface representation

Changes up to 1.00b06

	* bug fixes for plugin-based load_traj

Changes up to 1.00b05

	* support for trajectory input via VMD plugins
	[tested: XTC, TRR, TRJ; to test: GRO, G96, DCD]

	* fixed wildcard array overrun segfault

	* tuned VRML2 export

Changes up to 1.00b04

	* fixed cartoon_trace_atoms crash bug

	* fixed some horridly complicated rendering bugs with labels
    
	* fixed some cartoon drawing glitches
    
	* python blocks

	* fixed formal charges & valences on nucleic acid backbone

	* fixed race condition in color querying

Changes up to 1.00b03

	* near_to selection operator

	* surface_carve_normal_cutoff setting

Changes up to 1.00b02

	* MOL2 fixes

	* CVS->SVN migration

	* preliminary sequence alignment objects (incomplete)

	* UTF8 support with two new fonts having Greek symbols

Changes up to 1.00b01

	* VMRL2 export with correct normals for all geometry except
	labels!

Changes up to 0.99rcX

	* one-button viewing mode

	* fixed 32-bit memory allocation bug

	* fixed selection argument to rotate command

	* fixed mview-based object animation loops

	* mol2 file reading fixes

	* single-molecule mol, mol2, sdf now not discrete by default.

	* parallel geometry builds

	* massive reworking of ramp_new for molecular objects

	* VRML2 support from Chris Want.

	* fixed button in benchmark wizard

Changes up to 0.99


	pre01

	* WARNING: One annoying GOTCHA!  Launch script "./pymol.com" is
	now just plain old "./pymol" -- sorry for the resulting config
	hassles.

	* Now running Python 2.4 on Windows, Linux, IRIX, and Solaris Mac
	remains at 2.3 in order to match built-in Mac OS X Python

	* fixed GUI bug in pmg/tk & added new alignment option for states.

	beta38

	* fixed field width bug in PDB writer

	beta37

	beta36

	* fetch no longer loads PDB as discrete

	beta35

	* MacPyMOL drag & drop fixes

	beta34

	* "fetch" command

	beta33

	* fixed SS assignment crash bug on Win32

	beta32

	* numerous minor PDB reading, threading, and cartoon glitches
	eliminated during validation phase

	* optimized PDB read performance

	* ray_legacy_lighting setting to enable blending of previous
	lighting algorithm with new (more correct) lighting

	* dss state=0 on a multi-state obj now assigns consensus dss
	state=-x1 on a multi-state obj now assigns union

	* fixed subtle logic bug in match & merge of highly similar PDB
	files

	* various fixed to the alignment & matrix handling code
    
	* non-textured label positioning

	* label_position x,y values <-1 or >1

	* multiple lights now work with multiple processors

	* label position for dashes

	* label positing finally dealt with for atoms.

	* fixed defer_builds_mode=2, FINALLY.

	* depth information for selective antialiasing -- more efficient!

	beta31

	* B & W Molscript & David Goodsell look-alike modes
    
	* light4, light5, light6, light7

	* fixed line width for perspective ray tracing for better WYSIWYG

	* label_shadow_mode setting

	* draggable atom labels
    
	* fixed handedness of triangles in CGO cylinders

	* improved hydrogen bond detection for alcohols and added
	h_bond_exclusion setting for limiting intramolecular h_bonds

	* labels argument to distance, angle, dihedral changed to 'label'

	* introduced wrapping and handedness into interpolations

	* fixed yet another eigenbug

	* new color named "object" for stick_color...(should add others
	later)

	* fixed surface object show and hide menus

	* fixed gadget picking/dragging broken in beta30
    
	beta30

	* fixed session-reading bug from old (0.96) sessions

	* support for multiple lights, and increased rationalization of
	OpenGL and renderer lighting models

	* FreeType2 integration -- scalable fonts

	beta28

	* double-click on internal gui tab to hide it

	* fixed annoying problem with pop-up menus that fold back on self

	beta27

	* finished adding nucleic acid representations

	beta26

	* reworked some of the rendering code to work around OpenGL bugs

	beta24

	* proof of concept: molecular "Maya"

	* restored ability to move slice objects using shift actions

	beta23

	* fixed newly introduced scene bugs from beta22

	* binary GRD file fixes

	beta22

	* bump check

	* fixed busted GLU and GLN rotamers in library

	* dragging wizard, drag molecule (DrgM) mouse action

	* drag command & reconfigured editing mode mouse controls

	* reversed camera zoom behavior, added legacy_mouse_zoom setting

	* fixed longstanding scene/movie synchronization bug

	beta21

	* worked around depth_cue/fog bug in recent ATI drivers.

	* added ability to "import pymol" and finish_launching from a
	method

	* added general XYZ file support (not just Tinker XYZ)

	beta20

	* -j startup option for use with "geowalls", geowall stereo
	support

	* "Opaque" option in background menu

	* checker background patter for alpha channel: show_alpha_checker

	beta19

	* fixed alpha channel handling for edges -- now combining
	correctly

	* opaque_background setting for OpenGL rendering

	beta17 & beta18

	* "import pymol" finally works -- worked around _tkinter gotcha!
    
	beta16

	* dpi option to png command and image_dots_per_inch setting

	* reading and saving of stereo images

	* now renders stereo pairs in both side-by-side and QB stereo
	modes

	* fixed valence assignment for HIS and other polymeric residues
	with various names

	* some fixes and extra residues added to parameter assignment code

	* color by explicit 24-bit hex RGB triplets: 0xffffff

	* unicode hyphens in selections now converted to ASCII dashes

	* patched memory leak with dihedral display

	beta15

	* possible bug fix for settings storage related to corrupted
	sessions?

	beta14

	* delete command no longer allows partial names

	* updates for chempy bricks

	* fixed bug in case matching for the selection engine

	* Python API work

	beta13

	* fixed botched beta12 build for windows

	beta12

	* better mouse-handling in horizontal split-screen stereo

	* fixed setting side effects bug introduced in beta 11

	* faster transparency drawing (sorting)

	beta11

	* fixed some longstanding but minor ranging errors in isomesh and
	isosurf

	* map_trim command

	beta10

	* cartoon_loop_cap and cartoon_tube_cap settings

	* fixed latent memory-crash bug in align
    
	* fixed min/max issues with maps, alignment, and extents (blush)
    
	* fixed a couple bugs in p1m parsing

	* now supporting wildcards and name lists for most commands which
	previously took either a name or selection updates...massive
	changes to "executive" source code, so there may be new bugs...

	* new workaround for amber-like PDB files.

	* incorporated a sampled subset of the Dunbrack backbone-dependent
	rotamers at 10, 20, and 60 degrees based on > 1% occurence

	* incorporated the Dunbrack backbone independent rotamers
    
	* better cartoons for nucleic acids
	ribbon/cartoon_nucleic_acid_modes: 0, 1, 2, 3, and 4
	cartoon_ring_mode: 0, 1, 2 cartoon_ring_finder: 1, 2, 3
	cartoon_ring_color, cartoon_ring_width
        
	* normals now generated in a more sensible fashion for nucleic
	acid cartoons */

	* rank_assisted_sorts enables us to handle those insane PDB
	structures where residue 118 preceeds 118A and 123A preceeds 123,
	without introducing breaks in the ribbon or cartoon structure

	* fixed attachment of amino acids at the N-terminus

	* fixed a few bugs in the molecular editor

	* preliminary work on "h_fix" command

	beta09

	* now ignoring SCALEn if it is the identity matrix

	* pdb parser now pays attention to column information in the atom
	name field for inferring ambiguous element symbols

	* pdb_literal_names now works for real, taking the literal
	contents of the 4-character atom field including spaces

	beta08

	* eliminated annoying exception on blank command input

	* fixed crasher bug in phi_psi command

	* exceptions not caught for startup/command-line actions

	* improved behavior of "multiplex" option for PDB file loads

	* made some changed to apbs_tools.py
                                                                                            
	* updated apbs_tools.py also fixed or added NME, NHE, ACE, TIP
	resns.
                                                                                            
	* added save/restore of state-specific settings for molecule and
	distance (measurement) objects.
                                                                                            
	* fixed bug with label font & colors when editing
                                                                                            
	beta07
                                                                                            
	* my first shader program -- "perfect" CPK spheres for PYMOL
                                                                                            
	* sphere_mode setting for increased performance including use of
	GL_POINT based sphere impostors
                                                                                            
	* -O option for when you've just got to squeeze a few million
	atoms into PyMOL for CPK/sphere rendering...
                                                                                            
	* slightly reduced RAM usage when rendering complex scenes
                                                                                            
	* converted all the Python code to 4-space indentation (more
	standard)
                                                                                            
	* viewport can now take a single argument (height or width)
                                                                                            
	* oversize images are now downsampled and displayed
                                                                                            
	beta06
                                                                                            
	* draw command -- enables OpenGL rendering of large images
                                                                                            
	* fixed state argument for cmd.get_distance
                                                                                            
	* support for windows hidden folders with terminal dollar sign:
	//share/folder$/path/file
                                                                                            
	beta05
                                                                                            
	* ray now stops and movie and turns off sculpting
                                                                                            
	* Better return conventions for the PyMOL API: errors return
	negatives, success returns None, and boolean queries return 0 or
	1.  Exceptions are raised by default on error conditions unless
	the raise_exceptions setting is disabled
                                                                                            
	beta03
                                                                                            
	* fixes to presets and polar contact finding code
                                                                                            
	* changes to the action menu for selections
                                                                                            
	* addressed single-click select and menu with slow refresh
                                                                                            
	* fixed serious race condition / threading bug in popup menus --
	this explains & eliminate the sporadic crashes observed on smp
	machines
                                                                                            
	beta02
                                                                                            
	* fixed broken reading of multistate objects from strings
                                                                                            
	beta01
                                                                                            
	* identified cause and temporary workaround for bad nVidia drivers
	on linux
                                                                                            
	* fixed performace issue with torsion update mechanism when
	rotating torsions
                                                                                            
Changes up to 0.98
                                                                                            
    beta35                                                                                  
                                                                                            
    * isosurface and isomesh now use the same ranging criteria                              
                                                                                            
    * matrix_transfer, matrix_reset commands (WHAT A PAIN)                                  
                                                                                            
    * added support for row-major 4x4 homogenous transformation                             
      matrices, and in resolving internal conflicts with TTT matrices,                      
      made them more compatible with homogenous matrices                                    
                                                                                            
    * internal matrix code cleaned up somewhat -- conventions used                          
      are now explicit in most cases.                                                       
                                                                                            
    * distance wizard becomes measurement wizard                                            
                                                                                            
    beta34                                                                                  
                                                                                            
    * fixed glitch in handling bogus CRYST records                                          
                                                                                            
    * patched up some memory leaks                                                          
                                                                                            
    beta33                                                                                  
                                                                                            
    * wildcards for model and selection names                                               
                                                                                            
    * auto disable atom name wildcard for files with asterisks in                           
      the atom name field                                                                   
                                                                                            
    beta32                                                                                  
                                                                                            
    * psw files now start from first scene by default                                       
                                                                                            
    * scene animation duration default = 2.25                                               
                                                                                            
    * async option to ray, now default for gui "ray" button                                 
                                                                                            
    * increased output buffering for script output                                          
                                                                                            
    * fixed sdf url support                                                                 
                                                                                            
    beta31                                                                                  
                                                                                            
    * scene renaming                                                                        
                                                                                            
    * dihedral display during dihedral bond torsion editing                                 
                                                                                            
    beta30                                                                                  
                                                                                            
    * presentation mode now auto-quits after blank screen on either end.                    
                                                                                            
    * fixed (or rather worked around) two bugs with nVidia on Mac                           
                                                                                            
    * wildcards for the main selection operations (alt, name, resi, resn,                   
      chain, segi, text_type)                                                               
                                                                                            
    * wildcard, atom_name_wildcard, ignore_case settings                                    
                                                                                            
    * pushed selection property list and range handling down into C                         
      (selections should now run much faster)                                               
                                                                                            
    * defer_builds_mode setting for improved performance with long                          
      trajectories -- now possible to work with files containing                            
      thousands of states, and to render impossibly long movies piecewise.                  
                                                                                            
    * switched SDF parsing into C -- "way faster dude!"                                     
                                                                                            
    * new "move" option for the fuse command                                                
                                                                                            
    * url support for pdb, mol, mol2, xplor, ccp4, pkl, and pse files.                      
                                                                                            
    beta29                                                                                  
                                                                                            
    * angle & dihedral visualization                                                        
                                                                                            
    * fixed control-panel click bug                                                         
                                                                                            
    * reorganized the Tcl/Tk modules to better enable customized                            
      user interfaces                                                                       
                                                                                            
    * fixed long-standing transparency shadow bug                                           
                                                                                            
    * improved 64-bit cleanliness                                                           
                                                                                            
    * fixed stereo rendering for selections and edit indicators                             
                                                                                            
    * added support for embedded data on stdin                                              
                                                                                            
    * support for 4-letter residue codes in PDB files                                       
                                                                                            
    * new selection operator for proteins "pepseq/ps." with 1-letter                        
      peptide codes                                                                         
                                                                                            
    * streamlined launch time in various ways                                               
                                                                                            
    * updated lighting model to increase WYSIWG characteristics                             
      between OpenGL and ray-tracing                                                        
                                                                                            
    * fixed major bug with symmetry expansion                                               
                                                                                            
    * overhaul of the scene subsystem to create some order                                  
                                                                                            
    * orient command now chooses the least perturbation from the                            
      current view                                                                          
                                                                                            
    * "as" command for more efficient changing of representations                           
                                                                                            
    * reorganized color menus and added some new colors                                     
                                                                                            
    * selections now more visible                                                           
                                                                                            
    * ribbon_side_chain_helper                                                              
                                                                                            
    * new scroll wheel capabilities (MvSZ, MovZ)                                            
                                                                                            
    * used CHUD to optimize the new raytracer code                                          
                                                                                            
    * ray tracer now supports perspective by default.  Unfortunately,                       
      this significantly slows down raytracing...                                           
                                                                                            
    * single-click actions                                                                  
                                                                                            
    * continued elimination of global state information                                     
                                                                                            
    * texture_fonts for better performance on low-end ATI hardware                          
                                                                                            
    * fixed F10 action in external gui                                                      
                                                                                            
    * added colors for each atomic element, plus deuterium                                  
                                                                                            
    * added 32 new automatic colors                                                         
                                                                                            
    * fixed bugs with import pymol launch approach                                          
                                                                                            
    * fixed bug with TRJCONV multimodel PDB files                                           
                                                                                            
    * order command for managing entries in the control panel                               
                                                                                            
    * P1M script format with embedded data & extra security                                 
                                                                                            
    * increased compatibility for variant MOL2 usage                                        
                                                                                            
    * various performance enhancements, esp. to MOL2 and SDF loads                          
                                                                                            
    * fixed quiet setting for align function                                                
                                                                                            
    * surface optimize subsets setting                                                      
                                                                                            
    * .pov file via save command                                                            
                                                                                            
    * fixed bug with gadgetramp events                                                      
                                                                                            
    * updated presets                                                                       
                                                                                            
    * cartoon_side_chain_helper setting                                                     
                                                                                            
    * putty, and associated selections (thanks in part to Cameron Mura)                     
                                                                                            
    * selection dots no longer fogged                                                       
                                                                                            
    * new actions in the names list                                                         
                                                                                            
    * fixed rare system crash on certain ATI Radeon hardware when                           
      picking or selecting atoms.                                                           
                                                                                            
    * huge performance boost for large systems/heavily loaded PyMOL                         
                                                                                            
    * ray_direct_shade setting                                                              
                                                                                            
    * adjusted povray camera and light settings                                             
                                                                                            
    * povray export now supports mesh2 -- no more need for MegaPOV.                         
                                                                                            
    * performance increase for atom selections                                              
                                                                                            
    * updated output generated by PyMOL when loading various files...                       
                                                                                            
    * rank as the final arbiter of atom sorts (if everything else matches)                  
                                                                                            
    * handling of PDB files with mismatched SCALE and CRYST                                 
                                                                                            
    * special handling for CCP4 maps with missing symmetry blocks                           
                                                                                            
    * long-term code changes: elimination of global state from PyMOL and                    
      allow for option of separating PyMOL graphics from Python top level                   
                                                                                            
    * support for residue names and identifiers in mol2 files                               
                                                                                            
    * dynamic grid for slice module                                                         
                                                                                            
    * rank attribute for atoms ( = rank/row from input file)                                
                                                                                            
    * additional safety margins around glReadPixels...                                      
                                                                                            
    * cmd.get_color_index                                                                   
                                                                                            
    * passive motion outside of window kills passive menus...                               
                                                                                            
    * faster coulomb_local + menu changes                                                   
                                                                                            
    * fixed bug with object/selection renaming                                              
                                                                                            
    * fixed bug with sequence viewer segment/chain display & spacing                        
                                                                                            
    * slices + associated settings (thanks in part to Filipe Maia)                          
                                                                                            
    * fixed bug with symexp for when template atoms are outside the                         
      target cell...                                                                        
                                                                                            
 Changes up to 0.97                                                                         
                                                                                            
    * install plugin menu item                                                              
                                                                                            
    * fixed sequence viewer bug -- GLU now shown as 'E' not 'D'!                            
                                                                                            
    * included Remote PDB loader and APBS plugin                                            
                                                                                            
 Changes up to 0.96                                                                         
                                                                                            
    * more VDW parameters & updated bond info for DNA/RNA                                   
                                                                                            
    * fixed a colossal memory leak in the champ module.                                     
                                                                                            
    * aromatic bond display                                                                 
                                                                                            
    * mol2 and multi-mol2 reading capability                                                
                                                                                            
    -- beta 16                                                                              
    * added experimental ability to calculate vacuum electrostatic                          
      potentials                                                                            
                                                                                            
    * fixed bugs with map_double, map_new, and color ramping                                
                                                                                            
    -- beta 15                                                                              
                                                                                            
    * annotation wizard (e.g. for SD files -- experimental)                                 
                                                                                            
    -- beta 14                                                                              
                                                                                            
    * additional support for weird concatenated PDB files such as those                     
      output by MOE                                                                         
                                                                                            
    * fixed problem with rendering of discontinuous surfaces                                
                                                                                            
    -- beta13                                                                               
                                                                                            
    * get_angle, get_distance commands                                                      
                                                                                            
    * fixed pasting to OpenGL window under X11                                              
                                                                                            
    * fixed "Get View" button in MacPyMOL, now also copying                                 
      matrix direct to the clipboard in all versions.                                       
                                                                                            
    * API load actions now run quietly by default, like other functions.                    
                                                                                            
    * pdb_reformat_names_mode = 3 gives IUPAC internally with PDB I/O                       
      pdb_reformat_names_mode = 1 (PDB) & 2 (Amber/IUPAC), now                              
      correctly handle 3-letter names correctly for various hydrogens                       
                                                                                            
    * fixed occasional "snail track" bug with surfaces                                      
                                                                                            
    * seq_view_label_mode setting                                                           
                                                                                            
    * wizard prompt now avoids overlap with sequence browser                                
                                                                                            
    * double-click-to-center now uses current state coordinates only                        
                                                                                            
    * tentative PQR file reading support                                                    
                                                                                            
    * fixed major bug in map ranging code                                                   
                                                                                            
    -- beta 11                                                                              
                                                                                            
    * updated color handling for sequence viewer                                            
                                                                                            
    * new settings: auto_classify_atoms, selection operators:                               
      polymer, solvent, organic, inorganic                                                  
                                                                                            
    * transparency_mode now subordinates backface_cull and                                  
      two_sided_lighting in OpenGL and the ray tracer                                       
                                                                                            
    * seq_view settings                                                                     
                                                                                            
    * sequence viewer is now "in"                                                           
                                                                                            
    * mouse_selection_mode setting                                                          
                                                                                            
    * got real busy on the sequence viewer                                                  
                                                                                            
    * created plugin menu                                                                   
                                                                                            
    * further menu consolidation to make room for plugin menus                              
                                                                                            
    * fixed "use display lists" menu option                                                 
                                                                                            
    * fixed "stereo swap" and Display->Stereo->Swap Sides menu item.                        
                                                                                            
    * ray_transparency contrast back to default of 1.0 default (WYSIWYG).                   
                                                                                            
    * fixed a few minor bugs with picked atom selection indices                             
                                                                                            
    * menus now stay without mouse being held down (what an improvement!)                   
                                                                                            
    * fixed a couple of scroll-bar glitches                                                 
                                                                                            
    -- beta 5                                                                               
                                                                                            
    * movie.sweep convenience function for simple back & forth movies                       
                                                                                            
    * PyMOL can now write multi-model PDB files (save with state=-2)                        
                                                                                            
    * atoms with the name resi, but not the same resn are now considered                    
      to be in different residues (fixed byres bugs).                                       
                                                                                            
    * ray_transparency_contrast setting, default=2.0, improves contrast                     
      of the transparent surface relative to objects inside.                                
                                                                                            
    * set_name command                                                                      
                                                                                            
    * fixed save_session behavior to avoid accidental overwrites after                      
      opening a new session (mac & tcl GUIs)                                                
                                                                                            
    * active_selections setting & changes to the selection paradigm                         
      in preparation for the sequence alignment tool : )                                    
                                                                                            
    * fixed minor bug in fitting code (faster convergence?)                                 
                                                                                            
    * added surface_trim_factor and surface_trim_factor settings                            
      in order to hard-to-tesselate peaks on the surface                                    
                                                                                            
    * taught PyMOL bond valences for G,A,T,C,U residues                                     
                                                                                            
    * greatly improved quality of the surface rendering algorithm for                       
      surface_quality = 2, 3, 4, etc.                                                       
                                                                                            
    * fixed over-zealous movie security warning: no longer warns if                         
      there weren't any commands defined                                                    
                                                                                            
    * surface_carve_cutoff, surface_carve_selection, surface_carve_state                    
      surface_clear_cutoff, surface_clear_selection, surface_clear_state                    
      settings, to enable sub-atomic culling of surfaces...                                 
                                                                                            
    * stick_transparency opengl rendering fixed                                             
                                                                                            
    * passive stereo GLUT support (extra-wide desktop) for Windows                          
                                                                                            
    * adjusted reflectivity of interior color to better match exterior                      
                                                                                            
    * minor fixes to depth_cue and ray_trace_fog control and input                          
                                                                                            
    * now uses 3X less memory when rendering surface_type=2 (meshes)                        
                                                                                            
    * fixed bug in surface generation code, & treaked surface modes                         
                                                                                            
    * various changes to surfacing algorithm greatly increase robustness                    
      when surfacing crevaces -- can now handle small(er) solvent probes.                   
                                                                                            
    * surface_solvent, triangle_max_passes settings                                         
                                                                                            
    * mesh_type, mesh_lighting, dot_lighting settings                                       
                                                                                            
    * reinitialize now stops rocking                                                        
                                                                                            
    * fixed logging of button presses in MacPyMOL                                           
                                                                                            
    * added multi-line command paste support to MacPyMOL                                    
                                                                                            
    * dropped support for "del all" in favor of "dele all"                                  
                                                                                            
    * StereoPyMOL1280 mode on mac for higher-resolution stereo                              
                                                                                            
    * fixed a race condition that was causing OSX-X11-hybrid to crash                       
      when "quit" was typed into the external Tcl/Tk GUI                                    
                                                                                            
    * added numarray into the osx-x11-hybrid version for BSI use                            
                                                                                            
    * increased the session file version # to account for the new colors                    
                                                                                            
    * added a "perceptive space" rainbow & switched this over to default                    
                                                                                            
    * fixed ray-tracing bug with infinite loops on transparent surfaces                     
                                                                                            
    * fixed logging for new molecular editing features                                      
                                                                                            
    * pdb1 extension support                                                                
                                                                                            
    * fixed unintentional default OpenGL bug reporting                                      
                                                                                            
 Changes up to 0.95                                                                         
                                                                                            
    * changed cartoon_tube_radius to a more aestically pleasing 0.5A                        
                                                                                            
    * ribbon now shows nuc. acid backbone too                                               
                                                                                            
    * added presets for ligand sites, including our new surface reps.                       
                                                                                            
    * fixed bug with scene coloring                                                         
                                                                                            
    * adjusted clipping plane bounds to eliminate shingle effect from                       
      excessive depth ranges.                                                               
                                                                                            
    * mesh_normals setting for surface_type 2                                               
                                                                                            
    * launch option: -P # enables multisampling on Macs & Windows.                          
      NOTE: on Windows, only "-P 4" works, and only tested on ATI cards.                    
                                                                                            
    * session_migration setting                                                             
                                                                                            
    * fixed problem with view matrix exploding on some proteins -- now                      
      allow front clipping plane to go negative with suitable safeguards                    
                                                                                            
    * fixed bug with raytracing transparent surfaces using intermediate                     
      backgrounds                                                                           
                                                                                            
    * surface code now tolerates superimposed identical atoms more gracefully               
                                                                                            
    * dot_normals setting                                                                   
                                                                                            
    * bound_to selection operator now complements neighbor...                               
                                                                                            
    * fixed stereo opengl bug & improved opengl debugging capability                        
                                                                                            
    * extended editor to support multiple picked atoms in different objects                 
                                                                                            
    * fixed major bug in mesh representation                                                
                                                                                            
    * updated setup.py                                                                      
                                                                                            
    * surface_type setting:  0 = solid, 1 = dot, 2 = mesh                                   
                                                                                            
    * fixed off-center behavior of center command with respect to clipping planes           
                                                                                            
    * fixed label representation memory (on/off only) in scenes                             
                                                                                            
    * added support for explicit RESN and RESI specification in selection                   
      macros: RESN`RESI/, RESN`/, `RESI/ vs semi-ambiguous RESN/ or RESI/                   
                                                                                            
    * fixed nonbonded detection problem with discrete objects                               
                                                                                            
    * fixed serious bug with "state" selection operator and discrete objects.               
                                                                                            
    * improved ray-tracer's ability to handle multiple transparent objects                  
                                                                                            
    * "Virtual trackball" toggle now in menu                                                
                                                                                            
    * added variety of new functionality to pop-up menus                                    
                                                                                            
    * fixed segmentation fault bug in atom picking (only seen on Mac?)                      
                                                                                            
    * much-improved support for raytracing of large structures;                             
      various bugs fixed                                                                    
                                                                                            
    * fixed memory management issues on OS-X                                                
                                                                                            
    * endianness check for .phi files                                                       
                                                                                            
    * test cases updated to reflect new molecular editing behavior                          
                                                                                            
    * default arguments (and behavior) changed for dist and bond commands                   
                                                                                            
    * pdb_standard_order now default on                                                     
                                                                                            
    * textual button mode indicator, more button changes...                                 
                                                                                            
    * ray-tracing of RGBA pixmap text now supported FINALLY.                                
                                                                                            
    * pk1-4 now have different visual representations...                                    
                                                                                            
    * fixed hydrogen adding for amides/ureas                                                
                                                                                            
    * changed PyMOL file output to comply with PDB standards with respect                   
      to placement of the atomic symbol in the atom name field                              
                                                                                            
    * overhauled C0700 test case                                                            
                                                                                            
    * pdb_reformat_names_mode setting (for PDB and AMBER conversions)                       
                                                                                            
    * appearance wizard                                                                     
                                                                                            
    * toggle command                                                                        
                                                                                            
    * virtual_trackball setting                                                             
                                                                                            
    * many new menus to support viewer pop-up actions                                       
                                                                                            
    * pop-up menus in viewer                                                                
                                                                                            
    * cascading pop-up menus                                                                
                                                                                            
    * made spheres pickable                                                                 
                                                                                            
    * made cartoons pickable using pickable CGOs : )))                                      
                                                                                            
    * finally fixed visible operator to behave as expected                                  
                                                                                            
    * massive overhaul of user interface appearance                                         
                                                                                            
    * double-clicking actions                                                               
                                                                                            
    * scrolling actions                                                                     
                                                                                            
    * new selection operations                                                              
       byfragment (byfrag, bf.)                                                             
       bysegment (byseg, bs.)                                                               
       bymolecule (bymol, bm. )                                                             
                                                                                            
    * added setting internal_gui_control_size so that users can decide how                  
      many lines of buttons they'd like to see.                                             
                                                                                            
    * revamped GUI, made buttons look like buttons                                          
                                                                                            
    * added ray_blend_colors setting to provide a simple way of                             
      reducing oversaturation                                                               
                                                                                            
    * fixed major bug in GRD map reading code & added normalization option                  
                                                                                            
    * fix potential crasher bug with stick_balls                                            
                                                                                            
    * SHFT-F# key support, for set_key, scenes, and views                                   
                                                                                            
    * cmd.extend now adds help for function (updated test case).                            
                                                                                            
    * various changes here and there for Mac OS/MacPyMOL compatibility                      
                                                                                            
    * extensive work on the metaphorics P5M file format/Fedora stuff                        
                                                                                            
    * massive tinkering with sequence visualization ideas, but nothing                      
      to show for it yet : (                                                                
                                                                                            
 Changes up to 0.94                                                                         
                                                                                            
    * no_smooth flag to make it easier to combine cartoon and atomistic                     
      representations                                                                       
                                                                                            
    * fixed yet another ray-tracing alpha channel bug with mixed                            
      transparent/opaque objects.                                                           
                                                                                            
    * new setting overlay_lines, overlay becomes a boolean toggle                           
                                                                                            
    * specular now acts as a binary veto over spec_reflect and                              
      specular_intensity holds the OpenGL spec. intensity                                   
                                                                                            
    * ray_trace_fog deprecated (subservient to depth_cue)                                   
                                                                                            
    * Mac OSX native port completed as "MacPyMOL" Incentive Product                         
       - support for additional file extensions                                             
       - GUI remembers last open location                                                   
       - QuickTime movie export                                                             
       - Cut and Paste image export                                                         
                                                                                            
    * fixed bug in SelectorCountStates                                                      
                                                                                            
    * default roving_polar_cutoff increased to 3.31 in order to show                        
      marginal/potential hydrogen bonds                                                     
                                                                                            
    * adjusted Z origin movement strategy again, and fixed problem                          
      with undesirable apparent z-translation in orthoscopic mode                           
                                                                                            
    * pdb_insertions_go_first setting for handling structures where                         
      inserted residues come before, not after, the numbered residue.                       
                                                                                            
    * Added support for older, binary-header O/DSN6 maps, including                         
      swap_dsn6_bytes setting (for unlikely scenarios).                                     
                                                                                            
 Changes up to 0.93                                                                         
                                                                                            
    * Restored ability to read version 0.86 sessions with CGOs.                             
                                                                                            
    * Fixed bug with O/BRIX map reading code.                                               
                                                                                            
    * Changed roving_origin behavior with respect to Z axis.                                
                                                                                            
    * P5M file handling for browser helper (for Metaphorics, mostly).                       
                                                                                            
 Changes up to 0.92                                                                         
                                                                                            
    * added RPM support for "import pymol", fixed several bugs running                      
      PyMOL in this fashion, with or without a GUI.                                         
                                                                                            
    * fixed alpha channel handling for transparent surfaces in ray tracer                   
      with a non-opaque background, with fog, and with both together.                       
                                                                                            
    * added defer_updates setting to provide a gentler alternative                          
      to suspend_updates and which can allow a threading applications                       
      to process a series of cmd.do commands without unnecessary                            
      updates                                                                               
                                                                                            
    * fixed a couple annoying bugs in mpng command movie rendering                          
      COMPATIBILITY WARNING: mpng no longer automatically adds an                           
      underscore to the movie filename prefix!                                              
                                                                                            
    * fixed Calcium detection for "CA+" residues                                            
                                                                                            
    * cmd.do updated to take multiple commands as a string or list of strings               
                                                                                            
    * increase the word length limit in the selector so that long lists                     
      of residues can be supplied.                                                          
                                                                                            
    * new test case for PDB file IO (C0700odd), do command (c1100do)                        
                                                                                            
    * WARNING: cmd.select API argument reordering may break existing code                   
                                                                                            
    * adjusted behavior of "set" and "unset" to enable more concise                         
      changes of global settings: "set setting-name" "unset setting-name"                   
      WARNING: API changes to "set" and "unset" argument ordering may                       
      break existing code                                                                   
                                                                                            
    * pdb_retain_ids setting                                                                
                                                                                            
    * Deuterium atom support, including DOD                                                 
                                                                                            
    * split_states command                                                                  
                                                                                            
    * much faster loading of multi-model PDB trajectories                                   
                                                                                            
    * get_symmetry & set_symmetry commands for molecule objects                             
                                                                                            
    * mutagenesis wizard now preserves cartoon display                                      
                                                                                            
    * fixed alpha channel handling for transparency OpenGL objects                          
                                                                                            
    * get_pdbstr API function                                                               
                                                                                            
    * movie_loop setting                                                                    
                                                                                            
    * changed behavior of movie controls in the internal gui so that                        
      the movie commands will run more consistently                                         
                                                                                            
 Changes up to 0.91                                                                         
                                                                                            
    * fixed separate cartoon rendering bugs with helices and strands                        
                                                                                            
    * added a fast C-based secondary structure assignment algorithm                         
      acessible through the "dss" command                                                   
                                                                                            
    * cartoon_transparency setting                                                          
                                                                                            
    * fixed "cake bug" in ray tracter for cylinders directly aligned                        
      with incident light ray                                                               
                                                                                            
    * taught sculpting engine to treat unbound waters as donor/acceptors */                 
                                                                                            
    * stick_ball, and stick_ball_ratio can be used to quikly generate ball                  
      and stick representation without messing around with spheres...                       
                                                                                            
    * NEW: display of valences for sticks (controlled by valence setting).                  
      stick_fixed_radius determines whether they are inscribed or not                       
                                                                                            
    * pdb HETATMS are no longer sorted by default                                           
                                                                                            
    * Torsional term added to sculpting engine...not perfect, but it's                      
      probably better than allowing for eclipsed conformations all over the place.          
                                                                                            
    * Optimized sculpting engine using CHUD/Shark -- now much faster.                       
                                                                                            
    * Fixed CENT action with multi-state object                                             
                                                                                            
    * Adjusting Z scaling for mouse to provide finer control                                
                                                                                            
    * Better WYSIWYG: If they are set to zero, then the settings:                           
        mesh_radius, line_radius, ribbon_radius,  dot_radius, dash_radius                   
      are now subordinated to:                                                              
        mesh_width, line_width, ribbon_width, dot_width, and dash_width.                    
      However, if changed to a non-zero value, they will take priority.                     
                                                                                            
      This behavior provides better WYSIWYG for raytracing, but will break                  
      some scripts.                                                                         
                                                                                            
    * fixed map_new ...,gaussian,... command and added options                              
          gaussian_resolution                                                               
          gaussian_b_adjust                                                                 
          gaussion_b_floor                                                                  
       default "map_new name" now creates a 2 A electron density map using                  
       current atomic Q and B for direct comparison with experimental density               
                                                                                            
    * updated ray tracer to support edge oversampling -- Antialiased rendering              
      is now SIGNIFICANTLY FASTER for simple scenes and is now enabled by                   
      default. Full scene supersampling is no longer necessary in most cases, but           
      if activated, it will provide even better image quality.                              
                                                                                            
      Antialias setting can now have values of 0-4:                                         
        antialias 0: no antialiasing                                                        
        antialias 1: edge-oversampling (as per ray_oversample_cutoff)                       
        antialias 2: 2X full scene supersample plus edge oversampling                       
        antialias 3: 3X full scene supersample plus edge oversampling                       
        antialias 4: 4X full scene supersample plus edge oversampling                       
                                                                                            
    * restored CRLFs on Windows versions of PyMOL so that                                   
      python code can be viewed/edited with Notepad, etc.                                   
                                                                                            
    * added quiet parameter to alter and iterate commands                                   
                                                                                            
    * fixed raytracing bug with one residue cylindrical helices                             
                                                                                            
    * fixed raytrace border bug                                                             
                                                                                            
    * fixed isosurface session save bug                                                     
                                                                                            
    * added high-quality transparency support to "isosurface"s                              
                                                                                            
    * greatly improved quality of surface output by "isosurface"                            
                                                                                            
    * added support for Biosym/InsightII ASCII grid files                                   
                                                                                            
    * support for BRIX map format                                                           
                                                                                            
    * fixed endianness problems with map files                                              
                                                                                            
    * pdb_use_ter_records: setting disables TER records in PDB output                       
                                                                                            
    * improved default hydrogen atom ordering in PyMOL                                      
                                                                                            
    * fixed bug in hydrogen name conversion -- this may break some scripts : (              
                                                                                            
    * pdb_hetatm_sort: disable and sort to see cartoons for                                 
      non-canonical PDB residues                                                            
                                                                                            
    * retain_order: enable and sort to preserve input atom ordering.                        
       NOTE: may prevent some residue-based operations from working                         
                                                                                            
    * Fixed processor mis-detection bug on Linux with certain P4s                           
                                                                                            
    * PyMOL now building warning-free on VC++ warning level 3                               
       (catches sloppy precision handling and conversion)                                   
                                                                                            
 Changes up to 0.90                                                                         
                                                                                            
    * Fixed IRIX and Linux minimal dependency Python launch context.                        
                                                                                            
    * Added CPU detection for IRIX and Linux                                                
                                                                                            
    * Fixed ribbon color and rendering bugs                                                 
                                                                                            
    * Put in checking for overly long selection words to avoid seg.fault.                   
                                                                                            
    * Incorporated Tom Lee's density wizard changes.                                        
                                                                                            
    * TCL_LIBRARY not overridden by PyMOLWin.exe if it exists                               
                                                                                            
    * Various NULL POINTER Errors removed                                                   
                                                                                            
    * Memory debugger disabled by default to support multithreading                         
                                                                                            
    * initial support for display lists -- not yet enabled by default                       
                                                                                            
    * partial surface calculations are now much much faster                                 
                                                                                            
    * intensive optimization of ray tracer, incl. inlining                                  
                                                                                            
    * updated online documentation & tests for the following commands                       
       feedback                                                                             
       extend                                                                               
       alias                                                                                
       (python_help)                                                                        
       get_view                                                                             
       view                                                                                 
       scene                                                                                
                                                                                            
 Changes up to 0.89                                                                         
                                                                                            
    * Fixed major session save and restore bugs                                             
                                                                                            
    * Updated ExtensionClass for improved Python 2.2 and 2.3 compatibility.                 
                                                                                            
    * Improving hash-table construction performance in ray tracer.                          
                                                                                            
    * Added CPU and RAM autodetection for OSX Mac                                           
                                                                                            
    * Added multithreading support to raytracter (set max_threads,n)                        
                                                                                            
    * Fixed various bugs on Mac including TAB-crash in external GUI                         
                                                                                            
 Changes up to 0.88                                                                         
                                                                                            
    * fixed numerous bugs                                                                   
                                                                                            
    * validated current test suite and source code build against:                           
         Linux, Win32, IRIX, Mac OSX, and OSF                                               
                                                                                            
    * new cartoon settings controls & tweaks                                                
                                                                                            
    * reinit command                                                                        
                                                                                            
    * Moved demo code into a Wizard                                                         
                                                                                            
    * Fixed an ancient memory trasher bug in Isosurface, thank God for                      
      test cases!                                                                           
                                                                                            
    * Wizards, as Python objects, are now saved with sessions! : )                          
                                                                                            
    * Wizard stack                                                                          
                                                                                            
    * scene annotation                                                                      
                                                                                            
    * tearoff menus                                                                         
                                                                                            
    * pdb_standard_order setting                                                            
                                                                                            
    * calibrated CGO line widths to produce consistent results                              
                                                                                            
    * added color support to scenes                                                         
                                                                                            
    * updated demonstrations                                                                
                                                                                            
    * fixed suspend_updates setting                                                         
                                                                                            
    * added map support to roving facility                                                  
                                                                                            
    * enabled distance objects to persist through redefinition                              
                                                                                            
    * fixed various geometry and rendering glitches with cartoon ribbons                    
                                                                                            
    * ray_interior_texture, ray_interior_shadows                                            
                                                                                            
    * get command allows settings to be queried from the command line                       
                                                                                            
    * added angle and shift options onto "ray" command for stereo figures                   
      (this automatically adjusts the light position)                                       
                                                                                            
    * added walleye stereo support                                                          
                                                                                            
    * can now pick and rotate bonds with a single click-and-drag                            
                                                                                            
    * overhauled map_new, isomesh, isosurface.  added new test case                         
                                                                                            
    * scene commands                                                                        
                                                                                            
    * "rep" and "color" selectors                                                           
                                                                                            
    * $TUT environment variable points at $PYMOL_PATH/data/tut                              
                                                                                            
    * fixed quadro stereo support with sessions...                                          
                                                                                            
    * cartoon_highlight_color now provides Molscript-like cartoon coloring                  
      which provides for an alternate color inside of helices and on the                    
      sides of beta strands.                                                                
                                                                                            
    * ray_interior_color can enable solid interiors in the ray tracer!                      
                                                                                            
    * fixed truncation error in view matrix composition.                                    
                                                                                            
    * Roving details. Many new settings.                                                    
                                                                                            
    * Roving origin.                                                                        
                                                                                            
    * Added ribbon_color, cartoon_color settings.                                           
                                                                                            
    * overhauled color menu, improved performance of rainbow and color by chain             
                                                                                            
    * added color space menu to Tcl/Tk Ext. GUI                                             
                                                                                            
    * added color space clamping to better enable CMYK color matching as well               
      as improve rendering quality                                                          
                                                                                            
    * added z-ordered transparency (nice!) with menu controls                               
                                                                                            
    * finished session save support for color ramps and gadgets                             
                                                                                            
    * debugged and tested Quadro hardware support                                           
                                                                                            
    * Added mouse_scale and mouse_limit settings.  Reduced "jumping" of                     
      virtual trackball.                                                                    
                                                                                            
    * Worked to resolve threading issues with multiple demanding                            
      clients...                                                                            
                                                                                            
    * Finally fixed sporadic "GC object already in linked list" bug on                      
      mac.                                                                                  
                                                                                            
    * huge cleanup of code to eliminate compiler warnings on VisualC                        
      and Windows & GCC32                                                                   
       - at least one bug fixed                                                             
       - more careful handling of precision                                                 
                                                                                            
    * updated acknowledgements in the README file                                           
                                                                                            
    * Tcl/Tk external gui now also follows -X, -Y, -W, and -V window parameters             
      "-V value" controls the size of the external Tcl/Tk GUI (if present)                  
                                                                                            
    * INCOMPABILITY WARNING: "-X" option for launching rpcserver changed to "-R"            
 	in order to make room for "-X" and "-Y" options for positioning GLUT window.           
                                                                                            
    * command line options: "-X value" and "-Y value" along with                            
 	"-W value" and "-H value" can now be used to determine the position and size           
 	of the GLUT OpenGL window.                                                             
                                                                                            
    * fixed session restore bug with editing mode                                           
                                                                                            
    * worked around Solaris compiler limitations.                                           
                                                                                            
 Changes up to 0.87                                                                         
                                                                                            
    * improved launch speed by hard-coding sphere definitions                               
                                                                                            
    * improved surfacing algorithm performance by about 12%                                 
                                                                                            
    * dot_solvent, mesh_solvent, and sphere_solvent settings                                
                                                                                            
    * simplified and improved mesh quality, added mesh_quality setting                      
                                                                                            
    * fixed session restore crash with objects having multiple states.                      
                                                                                            
    * improved specular reflection on transparent surfaces                                  
      (ray_transparency_specular=0) will restore original behavior.                         
                                                                                            
    * stick_transparency setting                                                            
                                                                                            
    * ray_transparency_shadows setting                                                      
                                                                                            
 Changes up to 0.86                                                                         
                                                                                            
    * added command history feature to external gui                                         
                                                                                            
    * added security warning and mechanism for session files                                
      containing movie commands.                                                            
                                                                                            
    * session saves completed -- boy that was a lot of work!                                
                                                                                            
    * reorganized tcltk menu structure                                                      
                                                                                            
    * minimal texture options exposed in menu (slow!)                                       
                                                                                            
    * better support for Python in PyMOL command scripts ('\' works for multiline blocks).  
                                                                                            
    * freeze state and thaw state added to mol_action menu                                  
                                                                                            
    * added xmlrpc01.py demonstration program to examples/devel                             
                                                                                            
    * ribbon_trace can be used to view CA-only models                                       
                                                                                            
    * ray_shadows setting can disable shadows in raytracer (slight performance inc.)        
                                                                                            
    * added secondary structure to chemical python model data structure                     
                                                                                            
    * fixed slab mode of clip statement                                                     
                                                                                            
    * update 'expand' and 'attach' can now take an atom name as well as an element symbol   
                                                                                            
 Changes up to 0.85                                                                         
                                                                                            
    * mmatrix now stores the complete view instead of just the rotation matrix              
                                                                                            
    * unset command                                                                         
                                                                                            
    * fixed handling of calcium atoms                                                       
                                                                                            
    * added automatic scroll bar for when you get too many objects/selections               
                                                                                            
    * added handle to manually adjust internal gui width                                    
                                                                                            
    * updated OpenGL depth_cue setting to more closely match those of raytracer             
                                                                                            
    * "center" command                                                                      
                                                                                            
    * PyMOL no longer wraps output lines by default "set wrap_output=78"                    
      to get previous behavior                                                              
                                                                                            
    * relocated binary shared objects from modules into the modules/pymol                   
      tree                                                                                  
                                                                                            
    * data files now separated from the modules directory into a parallel data              
      tree in $PYMOL_PATH                                                                   
                                                                                            
    * added ability to build PyMOL using Python distutils                                   
                                                                                            
    * revamped the PyMOL launch process.  It should now be possible                         
      to launch pymol simply with an "import pymol" statement, provided                     
      that the modules are in the Python search path                                        
                                                                                            
    * fixed get_dihedral to use current state index                                         
                                                                                            
    * revamped smooth command and added documentation                                       
                                                                                            
    * added some nasty code to handle quotes and apostrophes in atom selections             
      so that nucleic acids and sugars with apostrophes will work right while               
      you can also still explicitly use apostrophes or quotes                               
                                                                                            
    * added "safe" option to zoom command in order to provide a mode                        
      which will guarantee against clipping                                                 
                                                                                            
 Changes up to 0.84                                                                         
                                                                                            
    * updated SPHEROID command for use with trajectories                                    
                                                                                            
    * Can now read AMBER topology, coordinate, trajectory, and restart files                
                                                                                            
    * PyMOL now transforms 4-character atom names appropriately by default.                 
      Thus, 3HG2 in PDB file becomes an atom named "HG23"                                   
      If you don't like this, "set pdb_literal_names=1".                                    
                                                                                            
    * PyMOL now preserves stereo field on MOL-files to better enable                        
      shuttling of 2D structures through PyMOL...                                           
                                                                                            
    * fixed bug with dumping of dot surfaces...                                             
                                                                                            
    * fixed bug reading element identifer from PDB files                                    
                                                                                            
    * fixed bug with alternate conformations                                                
                                                                                            
 Changes up to 0.83                                                                         
                                                                                            
    * various tweaks to the semistatic minimal dependencies build...                        
                                                                                            
    * fixed bug in startup file reading                                                     
                                                                                            
    * first inclusion of cex file support                                                   
                                                                                            
 Changes up to 0.82                                                                         
                                                                                            
    * WARNING: default behavior of isomesh and isosurf changed!  By default, they           
      will now always load the mesh into state 1.  If you need the previous behavior,       
      then set the state argument to zero.                                                  
                                                                                            
 Changes up to 0.82                                                                         
                                                                                            
    * modified "cmd.system" to take an argument for asynchronous execution                  
                                                                                            
    * flag command no longer indicates atoms by default -- set "auto_indicate_flags"        
                                                                                            
    * cross-eye side-by-side stereo support                                                 
                                                                                            
    * fixed bug in valency display code                                                     
                                                                                            
    * fixed major bug in "create"                                                           
                                                                                            
    * raytracing bugfix for bond with zero length                                           
                                                                                            
    * complicated workaround for mouse atom selections with Radeon 8500 and WinXP           
      PyMOL may now be somewhat resistant to broken OpenGL ReadPixels implementations       
                                                                                            
    * improved water handling for "non-canonical" situations (i.e. real life muck)          
                                                                                            
    * moved configuration files to a subdirectory "setup"                                   
                                                                                            
    * mpng now can support a range in order to enable coarse-grained parallelism            
      (distributed movie rendering)                                                         
                                                                                            
    * "within" operator added to selection language                                         
                                                                                            
    * visible selection operator no longer hits disabled objects                            
                                                                                            
    * origin, zoom, and orient now take "state" as optional argument with special           
      handling for 0 (all states) and -1 (current state)                                    
                                                                                            
    * eigensolve output now considered blather                                              
                                                                                            
    * important bug-fix on rotate and translate commands                                    
                                                                                            
    * "present" operator in selection language and tests for "state" operator               
                                                                                            
 Changes up to 0.81                                                                         
                                                                                            
    * fixed bug in bg_color API function                                                    
                                                                                            
 Changes up to 0.80                                                                         
                                                                                            
    * major bug fix to "carve" in isomesh                                                   
                                                                                            
    * "command ?" now gives a list of arguments                                             
                                                                                            
    * fix spurious bugs reading files under unix                                            
                                                                                            
    * added support for alternate residue id codes in secondary structure records           
                                                                                            
    * cylinders have become sausages, and...                                                
       ...we now have flat-capped cylinders (0203)!                                         
                                                                                            
    * fixed duplicate logging with Run command                                              
                                                                                            
    * create a simple vector-based font (0203)                                              
                                                                                            
    * 3D text in CGOs                                                                       
                                                                                            
    * linear constraints in molecular sculpting engine                                      
                                                                                            
    * acetylene buidling block                                                              
                                                                                            
 Changes up to 0.79                                                                         
                                                                                            
    * internal character set                                                                
                                                                                            
    * solid isosurface rendering algorithm: "isosurface" command                            
                                                                                            
    * parser updated to handle selections like "resi 10 and (name c,n,o) and chain A"       
      which lack surrounding parentheses, but which have delimiters inside                  
                                                                                            
    * parser updated to handle (alt A+'') and similar constructs (previously DOA).          
                                                                                            
    * fixed ribbon & cartoon display when N-terminal atom is the CA                         
                                                                                            
    * changes to support MacOSX port (0203)                                                 
                                                                                            
    * ALIGN command                                                                         
                                                                                            
 Changes up to 0.78                                                                         
                                                                                            
    * revamped Makefiles for better portability and dependency handling.                    
                                                                                            
 Changes up to 0.77                                                                         
                                                                                            
    * sculpting information now cached between changes to molecular structures              
                                                                                            
    * optimized sculpting for small regions of large proteins                               
                                                                                            
    * FINALLY, modes for two-button mice                                                    
                                                                                            
 Changes up to 0.76                                                                         
                                                                                            
    * VDW radii adjusted.  Use "set legacy_vdw_radii=1" on start-up for old values.         
                                                                                            
    * Sculpt functionality.  Who needs gummy bears when you can have gummy molecules?       
                                                                                            
    * Numerous back-end bugs addressed.                                                     
                                                                                            
    * transparent spheres                                                                   
                                                                                            
 Changes up to 0.75                                                                         
                                                                                            
    * enabled automatic completion in the tcl/tk command window                             
                                                                                            
    * altered settings for dot representation                                               
                                                                                            
    * created stop_on_exception and raise_exceptions settings.                              
      WARNING: stop_on_exceptions is NOT set by default (this is so that                    
      log files which contain errors will continue to function).                            
                                                                                            
    * gutted cmd.py, and created a bunch of sub-modules which contain the                   
      code previously in cmd.py.                                                            
                                                                                            
    * superposition bugs fixed with multi-state objects (fit and intra_fit)                 
                                                                                            
    * cmd.set_key can now be used to redefine ALT and CTRL keys in addition                 
      to function keys and other specials.                                                  
                                                                                            
 Changes up to 0.74                                                                         
                                                                                            
    * very minor bug/doc fixes                                                              
                                                                                            
 Changes up to 0.73                                                                         
                                                                                            
    * improved fragment and residue building capabilities                                   
                                                                                            
 Changes up to 0.72                                                                         
                                                                                            
    * fixed some logging issues with dragging pieces                                        
                                                                                            
    * now possible to create empty objects, fixed mutagenesis wizard in response            
                                                                                            
    * all readable files are shown by default in the Tkinter file dialogs.                  
                                                                                            
 Changes up to 0.71                                                                         
                                                                                            
    * seg. fault bug fix in ObjectMoleculeConnect                                           
                                                                                            
    * two_sided_lighting option to help Jun at CCI project                                  
                                                                                            
    * fixed triangle rendering on lower-end graphics cards                                  
                                                                                            
    * revamped PyMOL's internal bond handling data structure.  I've done my best            
      to insure that this doesn't break anything, but it is a major change                  
      and has the potential to create huge problems...                                      
                                                                                            
    * empirically synchronized PyMOL and PovRay's perspective transformations...            
                                                                                            
 Changes up to 0.70                                                                         
                                                                                            
    * fixed symmetry bug with multiple state objects                                        
                                                                                            
    * symmetry now carried through create operations                                        
                                                                                            
 Changes up to 0.69                                                                         
                                                                                            
    * PNG reading                                                                           
                                                                                            
    * First generation PovRay interface...whoopee!                                          
                                                                                            
    * Tweaked util.ray_shadow and added some new settings                                   
                                                                                            
 Changes up to 0.68                                                                         
                                                                                            
    * HETATMS are no longer surfaced by default.  Clear the "ignore" flag or                
      set surface_mode=1 to restore their surfaces.                                         
                                                                                            
    * flag command now takes name arguments and can now reset, set, and clear               
      flags                                                                                 
                                                                                            
    * established some standard flag names and conventions                                  
                                                                                            
    * Upgrading OpenGL Pop-up menus, since it looks like the internal GUI                   
      will be widely used despite its original limited role (oh well...)                    
                                                                                            
    * Fixed element name guessing                                                           
                                                                                            
    * added ray_improve_shadows setting for improving shadows by                            
      projecting outward from triangles.                                                    
                                                                                            
    * Fixed a major bug in the raytracer which was causing bogus shadows to appear          
      on surfaces                                                                           
                                                                                            
    * Fixed a huge bug in surfacing of subsets. That function was totally whacked,          
      but no one had noticed or complained!!!  Revised the function of the                  
      surface_proximity setting                                                             
                                                                                            
    *  by default, PDB HETATMs are no longer surfaced -- if you want them to be, then       
       please "set surface_mode=1"                                                          
                                                                                            
    * "transparent" renamed to "transparency"                                               
                                                                                            
    * switched to a three-pass OpenGL rendering model in order to properly display opaque,  
      transparent, and antialiased objects                                                  
                                                                                            
    * OpenGL transparency now works too! See "help transparency".                           
                                                                                            
    * nonbonded spheres are now pickable                                                    
                                                                                            
    * surface_color and mesh_color override the default atom colors                         
      for uniform surface coloring -- added support for color names                         
      into the settings module                                                              
                                                                                            
    * flags 24 and 25 now work with surfaces and meshes.  See "help flags"                  
                                                                                            
 Changes up to 0.67                                                                         
                                                                                            
    * Transparency support in rendering has been added, but it doesn't yet                  
      exist yet in opengl mode.                                                             
                                                                                            
 Changes up to 0.66                                                                         
                                                                                            
    * numerous bug-fixes                                                                    
                                                                                            
 Changes up to 0.65                                                                         
                                                                                            
    * numerous bug-fixes                                                                    
                                                                                            
 Changes up to 0.64                                                                         
                                                                                            
    * stage 1 API enhancements -- consistent return conventions adopted                     
      (many will not follow conventions until stage 2 though)                               
                                                                                            
    * more surface_qualities: -3 to 2, surface_quality=1 is now even better                 
                                                                                            
    * click-and-drag a box to select atoms                                                  
                                                                                            
    * PyMOL now builds w/o warning in VC++6                                                 
                                                                                            
    * LOG FILE CAPABILITIES:  logging of both PyMOL scripts (.pml) and                      
      PyMOL program files (.pym). The "resume" command allows propagation                   
      of session-like behavior.  This makes a huge difference in PyMOL                      
      user-friendliness.                                                                    
                                                                                            
    * autocompletion bug fixed, generalized autocompletion added                            
                                                                                            
    * mesh_radius cut in half, for better default density figures                           
                                                                                            
    * carve command on isomesh                                                              
                                                                                            
    * pymolrc support                                                                       
                                                                                            
    * isosurface speed boosted by about 33% using C-oriented field object.                  
                                                                                            
    * fixed bugs with internal_gui options                                                  
                                                                                            
    * internal_feedback setting                                                             
                                                                                            
    * simple cartoon ribbon for DNA/RNA                                                     
                                                                                            
    * selection language now supports '+' as substitute for commas, and '-'                 
      as substitute for ':' in residue identifiers (more user friendly)                     
                                                                                            
    * selections no longer require parentheses unless they have commas or                   
      semicolons                                                                            
                                                                                            
    * unit cell display for molecules and meshes                                            
                                                                                            
 Changes up to 0.63                                                                         
                                                                                            
    * Density wizard                                                                        
                                                                                            
    * isomesh meshes now use mesh_width instead of line_width                               
                                                                                            
    * fixed rendering background color bug on BigEndian machines                            
                                                                                            
    * fixed fatal bug with symexp                                                           
                                                                                            
    * first attempt at support for CCP4's binary maps -- it works with my                   
      test maps, but will it work with others?                                              
                                                                                            
 Changes up to 0.62                                                                         
                                                                                            
    * tuned up the util.ray_shadows function, added a "matte" mode for better               
      definition of ribbons...                                                              
                                                                                            
    * integrated workaround for an apparent GCC serial optimizer bug on x86.                
                                                                                            
 Changes up to 0.61                                                                         
                                                                                            
    * bg_color command for easier background adjustments...                                 
                                                                                            
    * depth cue menu item and ray_trace_fog linked                                          
                                                                                            
    * cartoon_discrete_colors hack for coloring secondary structure properly                
                                                                                            
    * (ss ...) primitive in selector for selecting helices, etc.                            
                                                                                            
    * many cartoon ribbons improvements -- flat fancy sheets now VERY nice.                 
                                                                                            
 Changes up to 0.60                                                                         
                                                                                            
    * third generation fancy helices complete -- revamped interpolation code.               
                                                                                            
    * ray now takes dimensions for rendering larger than screen                             
                                                                                            
    * unpick and hide selection buttons                                                     
                                                                                            
    * various new menu items...                                                             
                                                                                            
    * preparing for GLUT independence on selected platforms...                              
                                                                                            
    * choice of lighting modes for ray-tracing (improved shadows, contrast)                 
                                                                                            
    * settings renames (gl_ambient, dot_radius)                                             
                                                                                            
    * settings changes (hash_max) and ray-tracing feedback                                  
                                                                                            
    * "help faster"                                                                         
                                                                                            
    * fixed minor glitch with fancy helices                                                 
                                                                                            
 Changes up to 0.59                                                                         
                                                                                            
    * fixed valency display bug...                                                          
                                                                                            
 Changes up to 0.58                                                                         
                                                                                            
    * second generation cartoon ribbons are in -- Goodbye Molscript!                        
                                                                                            
    * fixed half-decade old logic bug in MemoryDebug (blush!).                              
                                                                                            
    * "alter" and "alter_state" given a 50% performance boost                               
                                                                                            
    * added a coarse hydrogen-bond assessment feature (internal)                            
                                                                                            
    * added phi/psi measuring capability                                                    
                                                                                            
    * fixed selector memory leak on errors                                                  
                                                                                            
    * added first-generation cartoon riboons                                                
      (higher-quality to come later)                                                        
                                                                                            
    * added more specific settings for mesh and ribbon width, etc.                          
                                                                                            
    * add more settings-change side-effects                                                 
                                                                                            
    * fix bugs with saving pkl files for state > 1                                          
                                                                                            
    * added a concise notation into the selection language                                  
                                                                                            
        model/segment/chain/residue/name                                                    
                                  */name                                                    
                            residue/                                                        
                            residue/name                                                    
                      chain/       /                                                        
                      chain/residue/                                                        
                      chain/       /name                                                    
                      chain/residue/name                                                    
              segment/     /                                                                
              segment/     /       /name                                                    
              segment/     /residue                                                         
              segment/     /residue/name                                                    
              segment/chain/       /                                                        
              segment/chain/       /name                                                    
              segment/chain/residue/                                                        
              segment/chain/residue/name                                                    
       /model                                                                               
       /model/       /     /       /name                                                    
       /model/       /     /residue                                                         
       /model/       /     /residue/name                                                    
       /model/       /chain                                                                 
       /model/       /chain/       /name                                                    
       /model/       /chain/residue                                                         
       /model/       /chain/residue/name                                                    
       /model/segment                                                                       
       /model/segment/     /       /name                                                    
       /model/segment/     /residue                                                         
       /model/segment/     /residue/name                                                    
       /model/segment/chain                                                                 
       /model/segment/chain/       /name                                                    
       /model/segment/chain/residue                                                         
                                                                                            
 Changes up to 0.57                                                                         
                                                                                            
    * mutagenesis module                                                                    
                                                                                            
    * finished the set_dihedral command                                                     
                                                                                            
 Changes up to 0.56                                                                         
                                                                                            
    * fixed a serious parser bug with the mdo command                                       
                                                                                            
 Changes up to 0.55                                                                         
                                                                                            
    * fixed and enhanced util.mroll, util.mrock                                             
                                                                                            
 Changes up to 0.54                                                                         
                                                                                            
    * ID and elem fields in alter, iterate                                                  
                                                                                            
 Changes up to 0.53                                                                         
                                                                                            
    * change order of drawing within object to improve the                                  
      interaction with antialiased lines.                                                   
                                                                                            
    * thread safety improvements (fixed bug involving serial                                
      manipulations of the same object)                                                     
                                                                                            
    * bug fix with stick representations                                                    
                                                                                            
    * fixed minor goof with cmd.dist retval in 0.52                                         
                                                                                            
 Changes up to 0.52                                                                         
                                                                                            
    * many improvements to online help                                                      
                                                                                            
    * fixed discrete objects created from PDB files                                         
                                                                                            
    * prevented deadlock condition with re-entrant API locks                                
                                                                                            
    * fixed couple of logic-bugs in threading                                               
                                                                                            
    * changed output format from mouse click to a valid selection                           
                                                                                            
    * finished retrofit of the parser.                                                      
                                                                                            
    * formal charge now read from MOL files -- need to consider full                        
      implementation of MOL file reading capability (incl stereo)                           
                                                                                            
 Changes up to 0.51                                                                         
                                                                                            
    * Tcl/Tk GUI now contains a save molecule option                                        
                                                                                            
    * Tcl/Tk GUI help improved                                                              
                                                                                            
    * performance/quality options in the display menu                                       
                                                                                            
    * sphere quality setting                                                                
                                                                                            
    * depth_cue toggle setting (important for low-end PC hardware)                          
                                                                                            
    * specular reflections                                                                  
                                                                                            
    * fog setting                                                                           
                                                                                            
 Changes up to 0.50                                                                         
                                                                                            
    * can now "pick" C-alphas in the ribbon                                                 
                                                                                            
    * can now "pick" atoms and bonds in the stick representation                            
                                                                                            
    * improved clipping plane control command "clip"                                        
                                                                                            
    * pym file extension support, for PyMOL-specific .py files                              
                                                                                            
    * better windows NT compatibility                                                       
                                                                                            
    * settings browser                                                                      
                                                                                            
    * view, view_get, view_set commands                                                     
                                                                                            
    * Parser now contains a general shortcut handling module to                             
      further help in reducing typing                                                       
                                                                                            
    * Slight tweak of the virtual trackball                                                 
                                                                                            
    * Saving and restoring matrix, center, origin, zoom, clip                               
                                                                                            
    * Internal program output no longer includes python's stderr                            
                                                                                            
    * New thread management solution -- simple and stable -- plus                           
      it even works (I've even got test cases to prove it)!                                 
                                                                                            
    * Fixed memory-trashing bug in the selector                                             
                                                                                            
    * Found a workaround for KDE/Gnome/Tkinter/Tcl/Tk problems under linux                  
                                                                                            
    * Created Save option on the Tkinter menu, and added additional file types.             
                                                                                            
    * TAB-activated filename and command completion (CTRL-D too)                            
                                                                                            
    * Former TAB functionality moved to ESC (text/graphics toggle)                          
                                                                                            
    * Auto-detection of stereo capability                                                   
                                                                                            
    * Created a robust Feedback control mechanism                                           
                                                                                            
    * Eliminated hangs and crashes upon program termination with Win2k/NT.                  
                                                                                            
    * "Distances" wizard (internal gui;replace with external version later)                 
                                                                                            
    * "Pair Fit" wizard (internal gui; replace with external version later)                 
                                                                                            
    * Mesh objects now have states, and new meshes are appended.                            
                                                                                            
    * Modified raytrace antialiasing transfer function to improve sharpness.                
                                                                                            
    * Created alias and extend commands so that python scripts can extend the               
    pymol language on the fly.                                                              
                                                                                            
    * Additional test cases.                                                                
                                                                                            
    * Parser improved with a new argument parsing subsystem which has a                     
    better mapping to standard Python arguments.  This has significant                      
    potential to break existing code if there are any bugs, but I am                        
    shooting for 100% backwards compatibility.                                              
                                                                                            
 Changes up to 0.49                                                                         
                                                                                            
    * Improved editor, hydrogens now auto-deleted.                                          
                                                                                            
    * Visible selections.                                                                   
                                                                                            
    * Default mouse actions changed for editing and atom selecting.                         
                                                                                            
    * Callback objects (for use with PyOpenGL) now have extents.                            
                                                                                            
    * get_state and get_frame API functions                                                 
                                                                                            
 Important Changes 0.42-0.48                                                                
                                                                                            
    Too numerous to list them all...                                                        
                                                                                            
    * Addition of support for PyOpenGL-based GL calls with callback objects                 
                                                                                            
    * Wizard feature, for grabbing mouse input -- still needs flushing out.                 
                                                                                            
 ====================================                                                       
                                                                                            
 See below for changes implemented in specific releases                                     
 ------------------------------------------------------                                     
                                                                                            
 PyMOL Architecture and Development Status                                                  
                                                                                            
    OpenGL Core ( _cmd.so/.a/.dll/.lib and modules/pymol )                                  
                                                                                            
       Currently, deployed only in glutPyMOL (a.k.a. standard "PyMOL").                     
                                                                                            
    Syndicated Application Ideas...                                                         
                                                                                            
       glutPyMOL (PyMOL in GLUT window with an external GUI)                                
                                                                                            
          Deployed -- the current standard, in use globally.                                
                                                                                            
       ePyMOL Lite (EasyPyMOL, free version, win32 only)                                    
                                                                                            
          Planned for mid 2003                                                              
                                                                                            
       ePyMOL Pro (EasyPyMOL, professional version, win32 only)                             
                                                                                            
          Planned for mid 2003                                                              
                                                                                            
       axPyMOL (PyMOL inside of an ActiveX Control)                                         
                                                                                            
          Working prototype partially completed                                             
                                                                                            
       wxPyMOL (PyMOL inside of a wxPython Widget)                                          
                                                                                            
          Working prototype near completion.                                                
                                                                                            
       MacPyMOL (fully Aqua-based native version of PyMOL)                                  
                                                                                            
          Planned for late 2003                                                             
                                                                                            
       tkPyMOL (PyMOL inside of a Tcl/Tk TOGL widget)                                       
                                                                                            
          Planned for late 2003.                                                            
                                                                                            
       qtPyMOL (PyMOL inside of a Qt/PyQt Widget)                                           
                                                                                            
          Planned late 2003 or 2004.                                                        
                                                                                            
       perlMOL (PyMOL wrapped into a Perl module)                                           
                                                                                            
          Under consideration.                                                              
                                                                                            
       jPyMOL (PyMOL wrapped inside a Java class as an external C module)                   
                                                                                            
          Under consideration.                                                              
                                                                                            
    External GUIs for glutPyMOL                                                             
                                                                                            
       Default PyMOL Tcl/Tk GUI                                                             
                                                                                            
          Deployed -- the current standard, in use globally.                                
                                                                                            
       Tcl/Tk GUI for GAMESS-UK (CCP1)                                                      
                                                                                            
          In development, under direction of Paul Sherwood.                                 
                                                                                            
       Stanford Java Teaching GUI (iRoom, etc.)                                             
                                                                                            
          In development by team of Stanford students.                                      
                                                                                            
       UT Southwestern Bioinformatics Project                                               
                                                                                            
          In development, under direction of Rama Ragnanathan.                              
                                                                                            
       PHENIX                                                                               
                                                                                            
          In development, under direction of Paul Adams.                                    
                                                                                            
 OpenGL Core                                                                                
                                                                                            
    Changes planned                                                                         
                                                                                            
       * Add support for HKEY_USERS entries into PyMOLWin                                   
                                                                                            
       * IO routine for a generic volume data object (to supplement bricks and maps)        
                                                                                            
       * Real Edit Menu in Tk (with normal cut/paste, etc)                                  
                                                                                            
       * support anisotropic B-factor renditions (ellipsoids)                               
                                                                                            
       * support MOL2 and multi-MOL2 file formats                                           
                                                                                            
       * add an interactive tutorial                                                        
                                                                                            
       * finish abstracting GLUT away from PyMOL                                            
                                                                                            
       * Solid clipped spheres and surfaces (how?)                                          
                                                                                            
       * Completely black/opaque underside of surfaces                                      
                                                                                            
       * Finish 3D label support                                                            
                                                                                            
       * Enable specific xyz positioning of labels (w/ mouse)                               
                                                                                            
       * Cutting of images to the MS Window's clipboard for easy                            
         pasting into Powerpoint                                                            
                                                                                            
       * clean up return values in the API and qualify exceptions.                          
         Include the source module name in messages, and provide proper                     
         feedback conditionals                                                              
                                                                                            
       * add thorough test suite                                                            
                                                                                            
       * matrix-based object translation and rotation                                       
                                                                                            
       * place feedback conditionals around all output.                                     
                                                                                            
       * create alter_state_atom command (combine PAlter and                                
         PAlterState into one function)                                                     
                                                                                            
    Changes Under Consideration                                                             
                                                                                            
       NOTE: Some of these are mutually exclusive, and many of them will                    
       never be carried out -- they are listed here so that we don't                        
       forget about them and so that you can see ways in which core PyMOL                   
       might evolve.                                                                        
                                                                                            
       * Allow multiple, parallel transformation matrices for each object                   
                                                                                            
       * Create a Rasmol translator in Python                                               
                                                                                            
       * Support mapping of additional dimensions into volume data sets                     
                                                                                            
       * "Fragment" wizard, tied into the fragments subsystem.                              
                                                                                            
       * CTRL and CTRL/SHIFT numbers should add aromatic and aliphatic                      
         ring systems in the builder                                                        
                                                                                            
       * support reading and writing of XPLOR PSF/PDB files to enable                       
         direct use of NAMD with PyMOL.  Note that this will require                        
         integration of basic force-field structures into PyMOL...not a                     
         lightweight task, but something I think should be done in a                        
         general way to facilitate use of PyMOL as a molecular modeling                     
         tool...                                                                            
                                                                                            
       * support direct reading of DCD, and/or Gromacs trajectory files                     
                                                                                            
       * fold MMTK into the main PyMOL distribution, and merge the two                      
         programs in a way which allow the user to "see" into MMTK's                        
         internal data structures using PyMOL while calculations are                        
         being performed.                                                                   
                                                                                            
       * create a VRML->CGO converter so that VRML can be displayed                         
         inside of PyMOL                                                                    
                                                                                            
       * create a VRML writer to facilitate export of PyMOL geometries.                     
                                                                                            
       * support CML via some "swallowable" python XML parser                               
                                                                                            
       * make PyMOL a compliant extension for the Chimera environment                       
                                                                                            
       * statistics module, applicable to maps                                              
                                                                                            
 Main Goals for 1.0 Release                                                                 
                                                                                            
    * MOL2 and CML file formats                                                             
                                                                                            
    * Generalized volumetric rendering: (1) mesh (2) solid (3) colormaps                    
                                                                                            
    * Integrated tutorial/demonstration system                                              
                                                                                            
    * Fully consistent API (defined and correct return values)                              
                                                                                            
 Current Bugs to Fix                                                                        
                                                                                            
    * superposition system fails with degenerate sets (planer systems,                      
      etc).  sometimes it just fails period                                                 
                                                                                            
