- Made facehugger ignore mobs disease.

- Added disease longevity
- Added magboots. They prevent slipping. In space or on wet floors. Found in EVA.
- Small meteor fixes.
- Some comments and general faggotry.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@364 316c924e-a436-60f5-8080-3fe189b3f50e

code/ATMOSPHERICS/components/filter.dm

@@ -29,10 +29,12 @@ obj/machinery/atmospherics/filter
 	var/filter_type = 0
 /*
 Filter types:
-0: Carbon Molecules: Plasma Toxin, Carbon Dioxide, Oxygen Agent B
-1: Oxygen: Oxygen ONLY
-2: Nitrogen: Nitrogen and Sleeping Agent
-3: Carbon Dioxide: Carbon Dioxide ONLY
+-1: Nothing
+ 0: Carbon Molecules: Plasma Toxin, Oxygen Agent B
+ 1: Oxygen: Oxygen ONLY
+ 2: Nitrogen: Nitrogen ONLY
+ 3: Carbon Dioxide: Carbon Dioxide ONLY
+ 4: Sleeping Agent (N2O)
 */
 
 	var/frequency = 0