Fixes issue 1040. Ability to give mechs all access and remove DNA locks from mechs and more.

(the fix is shitty, but then, so is mech code)
Fixes issue 1043. Safe structure allows users to teleport any item in the game to them

Increases the firefighter heat resistance to 4500.
Removes firefighter.dm, as it was entirely commented out. Firefighters are in ripley.dm.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@4968 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/structures/safe.dm

@@ -135,10 +135,11 @@ FLOOR SAFES
 	if(href_list["retrieve"])
 		user << browse("", "window=safe") // Close the menu
 
-		var/obj/item/P = locate(href_list["retrieve"])
-		if(P && in_range(src, user))
-			user.put_in_hands(P)
-			updateUsrDialog()
+		var/obj/item/P = locate(href_list["retrieve"]) in src
+		if(open)
+			if(P && in_range(src, user))
+				user.put_in_hands(P)
+				updateUsrDialog()
 
 
 /obj/structure/safe/attackby(obj/item/I as obj, mob/user as mob)