Fixed a supply shuttle runtime due to the stamping missing a null check.

Added a null check to cleanbots and new player preferences.
Did a bit of blob and antimatter work.


git-svn-id: http://tgstation13.googlecode.com/svn/trunk@3919 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/critters/critters.dm

@@ -91,6 +91,12 @@
 	brutevuln = 2
 
 
+/*	process()
+		if(prob(50))
+			TakeDamage(1)
+		..()*/
+
+
 	Die()
 		src.visible_message("<b>[src]</b> ruptures and explodes!")
 		src.alive = 0