Mob refactoring.

Updates Bump() code.
Intents now use constants.
Simple animals can now use languages without overriding say().
There is now a difference between being able to smash normal and reinforced walls.
Reworks simple_animal/attackby so that constructs don't need to override it simply to add damage resistance.

code/modules/power/apc.dm

@@ -658,7 +658,7 @@
 	if(istype(user,/mob/living/carbon/human))
 		var/mob/living/carbon/human/H = user
 
-		if(H.species.flags & IS_SYNTHETIC && H.a_intent == "grab")
+		if(H.species.flags & IS_SYNTHETIC && H.a_intent == I_GRAB)
 			if(emagged || stat & BROKEN)
 				var/datum/effect/effect/system/spark_spread/s = new /datum/effect/effect/system/spark_spread
 				s.set_up(3, 1, src)

code/modules/power/cable.dm

@@ -517,7 +517,7 @@ obj/structure/cable/proc/cableColor(var/colorC)
 	if(istype(M,/mob/living/carbon/human))
 		var/mob/living/carbon/human/H = M
 		var/datum/organ/external/S = H.get_organ(user.zone_sel.selecting)
-		if(!(S.status & ORGAN_ROBOT) || user.a_intent != "help")
+		if(!(S.status & ORGAN_ROBOT) || user.a_intent != I_HELP)
 			return ..()
 
 		if(H.species.flags & IS_SYNTHETIC)

code/modules/power/lighting.dm

@@ -737,7 +737,7 @@
 	if(!proximity) return
 	if(istype(target, /obj/machinery/light))
 		return
-	if(user.a_intent != "hurt")
+	if(user.a_intent != I_HURT)
 		return
 
 	shatter()