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()