Slimes can no longer be buckled to things, they're too squishy (people were abusing the fact that slime AI can't unbuckle)

Golems get head protection from their suit now and have their head slot clear so you can tell em apart with hats.

Fixed a typo related to slime surgery that I assume has been around since metroids were added how did nobody notice this thanks Failcakes.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@5563 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/structures/stool_bed_chair_nest/bed.dm

@@ -67,6 +67,10 @@
 	if ( !ismob(M) || (get_dist(src, user) > 1) || (M.loc != src.loc) || user.restrained() || user.lying || user.stat || M.buckled || istype(user, /mob/living/silicon/pai) )
 		return
 
+	if (istype(M, /mob/living/carbon/slime))
+		user << "The [M] is too squishy to buckle in."
+		return
+
 	unbuckle()
 
 	if (M == usr)