Changes from 1.0
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* "use weapon x" (where x = 0 to 9) to select weapons.  These are used for "alternate weapon selections"
instead of the original "use blaster", "use railgun", etc.  These are used instead of the 
"zwepas" variable. (Please read readme-1.1.txt for more information).
* zdmflags & 2 now means *disable* Zaero items in non-Zaero maps
* Sniper rifle can now shoot through plasmashields