Mining station tweaked:

- The mine entrance made less hallway-y with the removal of the walls, the floor there remains, 
- Cameras added and fixed
- Windows added around the station
- All internal walls are now regular walls, all the exterior walls remain reinforced tho.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@1644 316c924e-a436-60f5-8080-3fe189b3f50e

code/WorkInProgress/mining.dm

@@ -855,8 +855,8 @@ proc/move_mining_shuttle()
 	name = "Asteroid"
 	icon = 'floors.dmi'
 	icon_state = "asteroid"
-	oxygen = 0
-	nitrogen = 0
+	oxygen = 0.01
+	nitrogen = 0.01
 	temperature = TCMB
 	icon_plating = "asteroid"
 	var/seedName = "" //Name of the seed it contains