Went though the oddly few runtimes

Fixed up a few more firedoors on the map
Optables will respect air groups now
The Singularity:
Might produce less lag when eating things now.
80% down from 100% chance for a beacon to force movement.


git-svn-id: http://tgstation13.googlecode.com/svn/trunk@2126 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/gamemodes/meteor/meteor.dm

@@ -12,6 +12,7 @@
 	world << "<B>The space station has been stuck in a major meteor shower. You must escape from the station or at least live.</B>"
 
 /datum/game_mode/meteor/post_setup()
+	defer_powernet_rebuild = 2//Might help with the lag
 	spawn (rand(waittime_l, waittime_h))
 		send_intercept()
 	spawn(meteordelay)