Handle Window Close Events Properly
* handle window close events properly
* enable r_displayRefresh selection and feedback on mac
* avoid AGEN_IDENTITY when CGEN_DIFFUSE_LIGHTING
* colorized railgun muzzle flash, impact flash, and mark
* exactly synced animating textures with waveforms and collapsed
all explosion sequences into single shaders
* removed unneeded black pass on hell skies
* fixed grenades sticking to steep slopes
* scan for next highest fullscreen resolution when exact
mode fails (fixes SGI flat panel failing to init)
* all cgame cvars now have a cg_ prefix (crosshair, fov, etc)
* clear clientinfo before parsing configstring
* make all feedback voiceovers share the same channel
* fixed nodraw curves
* fixed obits from shooter entities
* fixed chat char issue
* separate gentity_t fields into sharedEntity_t
* reintegrated q_mathsys with q_math
* cg_forcemodel also forces player sounds
* unknown cmd commands don’t chat
* fixed strip order on text quads