Reduced deathsquad marauder number to 3 (previously 4). Added some fluff to their launch sequence.

Revisions to CentCom. CentCom now has its own access levels set, and a unique ID changing computer.
Added nasa void suit and captain armor to item steal list.
Fixed some run time errors for hand-tele from my previous commit.
Removed the remove poo and urine button from secrets.
Decoy AIs can now say stuff like regular AIs. This is useful if you need a non-player announcer for something, while taking into account talk_understand and the like. I use it for deathsquad shuttle announcements. I've placed A.L.I.C.E. on CentCom for such reasons.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@1704 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/items/weapons/teleportation.dm

@@ -28,8 +28,8 @@ Frequency:
 	..()
 	if (usr.stat || usr.restrained())
 		return
-	var/turf/current_location = locate(usr.x,usr.y,usr.z)//Can't teleport on clown-planet z-level.
-	if(current_location.z==6)
+	var/turf/current_location = get_turf(usr)//What turf is the user on?
+	if(!current_location||current_location.z==6)//If turf was not found or they're on z level 6.
 		usr << "The [src] is malfunctioning."
 		return
 	if ((usr.contents.Find(src) || (in_range(src, usr) && istype(src.loc, /turf))))
@@ -103,8 +103,8 @@ Frequency:
 /// HAND TELE
 
 /obj/item/weapon/hand_tele/attack_self(mob/user as mob)
-	var/turf/current_location = locate(usr.x,user.y,usr.z)//Can't teleport on clown-planet z-level.
-	if(current_location.z==6)
+	var/turf/current_location = get_turf(user)//What turf is the user on?
+	if(!current_location||current_location.z==6)//If turf was not found or they're on z level 6.
 		user << "The [src] is malfunctioning."
 		return
 	var/list/L = list(  )