Runtime fixes for:

/mob/attackby()
Bodybag (obj/structure/crate) were getting typecasted into /obj/item/weapon.

/mob/dead/observer/proc/dead_tele()
Added a check for a null or empty list of area's for the mob to be moved to.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@5273 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/mob/dead/observer/observer.dm

@@ -165,6 +165,10 @@ This is the proc mobs get to turn into a ghost. Forked from ghostize due to comp
 	var/list/L = list()
 	for(var/turf/T in get_area_turfs(thearea.type))
 		L+=T
+
+	if(!L || !L.len)
+		usr << "No area available."
+
 	usr.loc = pick(L)
 
 /mob/dead/observer/verb/follow()

code/modules/mob/mob.dm

@@ -80,7 +80,7 @@
 		M.show_message( message, 1, blind_message, 2)
 
 
-//This is aweful
+//This is awful
 /mob/attackby(obj/item/weapon/W as obj, mob/user as mob)
 
 	//Holding a balloon will shield you from an item that is_sharp() ... cause that makes sense
@@ -108,7 +108,7 @@
 	//If the mob is not wearing a shield or otherwise is not shielded
 	if ((!( shielded ) || !( W.flags ) & NOSHIELD))
 		spawn( 0 )
-			if (W)
+			if (W && istype(W, /obj/item)) //The istype is necessary for things like bodybags which are structures that do not have an attack() proc.
 				W.attack(src, user)
 				return
 	return