Lua MainCfg vars

See merge request !543

Let the map command warp to maps without a level header

See merge request !528

Various cmake adjustments

See merge request !538

Don't be mean to Tails plz (Pandora's Box Super cheat fix)

See merge request !540

Despite popular belief, this was just some experimenting from 2.2 development that we forgot to remove!

Tilted ripple

See merge request !524

OpenGL fixes

See merge request !519

Stop characters from being able to activate their abilities when doing a shield ability!

See merge request !522

Restore portal culling code that went gone by pure accident

See merge request !523

Optimize Software drawers

See merge request !533

Rework G_SetCustomExitVars to allow skipstats 2

See merge request !534

Make Amy only hug players at the same Z height

See merge request !521

Add TC_DASHMODE color shader

See merge request !526

Fix Ploadflat closing the game with "Too many flats in level" error message

See merge request !529