Added lighting code, didn't include it yet.
Lighting system is too buggy to continue until I know wtf is going on

Conflicts:
	baystation12.dme
	code/game/turfs/turf.dm
Lighting seems to be working now.
Lighting code complete.
ChangeTurf()... We meet again...
Fixed ghosts' lighting toggle. Mesons still look weird.
Reverted unrelated ZAS modification and unnecessary check.