Simple animals (wraiths, juggernauts, etc) can now be targeted by turrets. They can also destroy turrets

Simple animals can now smash lights.

Simple animals use their attack value vs grilles now, I'm not sure why they didn't before. This means juggernauts should smash them quickly, and artificers much more slowly.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@3964 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/grille.dm

@@ -88,7 +88,7 @@
 		M.visible_message("[M.name] smashes against the [src.name].", \
 							"You smash against the [src.name].", \
 							"You hear a noise")
-		src.health -= rand(4)
+		src.health -= M.melee_damage_upper
 		healthcheck()
 		return