Fixes chest not being coloured by necrosis

Conflicts:
	code/modules/mob/living/carbon/human/update_icons.dm
Revert "More adjustments. Implemented gas exuding/consumption (currently unused). Implemented cuttings, fixed some issues."

This reverts commit 95b069b7d451b41a1311d15569901ef74b16064f.
An Odysseus with patients now bypass mech movement-overrides.
Sound fixes

Conflicts:
	code/game/sound.dm
Merge pull request #329 from ZomgPonies/master

Patch