fix up airless turfs to be actually airless

Signed-off-by: Mloc-Argent <colmohici@gmail.com>

code/game/turfs/simulated/floor_types.dm

@@ -1,8 +1,8 @@
 /turf/simulated/floor/airless
 	icon_state = "floor"
 	name = "airless floor"
-	oxygen = 0.01
-	nitrogen = 0.01
+	oxygen = 0
+	nitrogen = 0
 	temperature = TCMB
 
 	New()
@@ -84,7 +84,7 @@
 	name = "vacuum floor"
 	icon_state = "engine"
 	oxygen = 0
-	nitrogen = 0.001
+	nitrogen = 0
 	temperature = TCMB
 
 /turf/simulated/floor/plating
@@ -96,8 +96,8 @@
 /turf/simulated/floor/plating/airless
 	icon_state = "plating"
 	name = "airless plating"
-	oxygen = 0.01
-	nitrogen = 0.01
+	oxygen = 0
+	nitrogen = 0
 	temperature = TCMB
 
 	New()

code/game/turfs/space/space.dm

@@ -3,7 +3,7 @@
 	name = "\proper space"
 	icon_state = "0"
 
-	temperature = T0C
+	temperature = TCMB
 	thermal_conductivity = OPEN_HEAT_TRANSFER_COEFFICIENT
 //	heat_capacity = 700000 No.
 

code/modules/mining/mine_turfs.dm

@@ -390,9 +390,9 @@
 	name = "asteroid"
 	icon = 'icons/turf/floors.dmi'
 	icon_state = "asteroid"
-	oxygen = 0.01
-	nitrogen = 0.01
-	temperature = T0C
+	oxygen = 0
+	nitrogen = 0
+	temperature = TCMB
 	icon_plating = "asteroid"
 	var/dug = 0       //0 = has not yet been dug, 1 = has already been dug
 	var/overlay_detail