ChangeDoors function, remove REVEL calls.

Fix for carpet in extra rooms & broken ListIndexes in PRE_ROOM_ENTITY_SPAWN.

Use PRE_ROOM_ENTITY_SPAWN, improves load times and stops bugs like rocks connecting to nothing.

Dead characters no longer shake during transitions, invulnerability during HUD animations, forgotten support.

Fix dark room crash due to special room update.

Fix cleared rooms sometimes acting uncleared.

Some callbacks for finer positioning, don't eat up shading in clearroomlayout

PRE_STAGEAPI_NEW_ROOM, fix for NextStage and LevelRooms persisting into normal floors.

Decoration support w/ custom anm2 as well.

Fix farts poisoning and damaging entities when overriden.