Quick & Dirty Panic Bunker Port

Tested on our server, works. Doesn't work if you don't have a DB (how would it?).

code/controllers/configuration.dm

@@ -94,6 +94,7 @@ var/list/gamemode_cache = list()
 	var/allow_extra_antags = 0
 	var/guests_allowed = 1
 	var/debugparanoid = 0
+	var/panic_bunker = 0
 
 	var/serverurl
 	var/server