Generations Arena 99e -> 99f Update

Here is a full list of changes from 99e to 99f, including many bug fixes.

Small team huds for Doom and Slipgate fixed.
PORTAL surfaces fixed.
Stormatorium's sky fixed again.
Heavy Chaingun cg_predictitems with ammo pickup behavior for Doom Warriors fixed.
Heavy Chaingun no longer gets stuck while running out of ammo.
Discharging into slime and lava printing wrong obit for victims fixed.
Strogg and Slipgate waterlevel handling for viewheights fixed. This was preventing Slipgaters from jumping in shallow water.
Changed execing of map rotation configs to scripted list-style arrangement.
Added "g_mapsort" cvar to control rotation:
0 - Normal map order
1 - Random start map
2 - Randomized map order
Fixed spamming of "This model cannot be used for this class. Forcing default" at random during Team play.
Fixed bots having incorrect team data after switching from FFA/Tourney to TeamDM/CTF.
Added "g_usemaplists" cvar to control rotation. (0 disable, 1 enable)
Added g_ffamaplist cvar to specify FFA maplist
Added g_tourneymaplist cvar to specify Tourney maplist
Added g_teamdmmaplist cvar to specify TeamDM maplist
Added g_ctfmaplist cvar to specify CTF maplist
Fixed "Onfire" shader not rendering for spectators following a player or during demo playback.
Players no longer catch fire while invulnerable.
Fixed deferred models not loading during warmup at player death.
Removed accuracy checking for all melee weapons.
Fixed menu problem with driverinfo page printing a shader error.
Fixed server browser list not displaying empty and full servers.
Changed default server browser option from local to internet
Fixed LSOV icon bleeding through solids with cg_simpleitems 1.
Increased the horizontal spread on dual gatling guns from 350 to 500. (This affects the individual guns independantly)
Increased spacing on dual gatling guns from 16 to 20 units.
Increased mortar refire time from 1000 ms to 1200 ms.
Changed mortar direct hit damage from 125 to 100 + a random from 0 to 20 (Q1 and Q2-style direct hit damage).
Forced com_hunkmegs to a min 128 in UI.
Fixed out of ammo icons for Earth, Doom, Slipgate, and Strogg Troopers.
Changed out of ammo behavior Doom Combat Shotgun when down to one shell.
Changed weapon switch behavior for Doom Heavy Chaingun and Plasma Rifle when firing.
Changed weapon switch behavior for Strogg Troopers Chaingun and Hyperblaster when firing.
Changed maplist folder to subfolder "rotations"
Tweaked internal version number.
color2 0 now turns off gat laser.
Modified mortar flight path to keep old flight trajectory dynamics, even at slower missile speed.
Reduced Earth's shard pickup from 10 to 5.
Fixed "nextmap" cvar being set in q3config.cfg. This was bypassing the menu load and triggering a level load at startup.
added cg_dlightplasma cvar to enable/disable Doom plasma dynamic lights. Default 1 (enable).
added cg_weaponkick cvar to disable viewkick on Strogg/Earth weapons. Default 1 (enable).
Hand Grenade splash calculating wrong for expired timer fixed.
mortar flight slowed to 1200 units and radius reduced to 160.
Changed Arena spawn health to 100 from 125.
Added cvars for invulnerability control:
g_invulnFactor
g_invulnSplashFactor