Committed Cael Aislinn's proposed commit: http://forums.nanotrasen.com/viewtopic.php?f=16&t=11641

- Xenos suit and helm (completely obscuring, and almost indistinguishable from drones) (admin spawned only for now). 
- Facehuggers now have different icon states for being thrown and after impregnation. 
- New death, unconscious and sleeping icons for aliens. 
- New icon (and projectile type) for neuroxotin. 
- New infection overlay images for telling aliens about pregnant humans (3 icons, showing the progression of the infestation). 
- New system for handling alien impregnation (alien embryos are an object inside the mob, instead of a disease). 
- Players can be operated surgically to remove the alien embryos (targetting the chest: scalpel, surgical saw, hemostat, retractors. If the embryo is nearly fully developed, it might come out alive though. 
- Corgis can now get impregnated. 
- There is a short animated overlay of a chestburster when it comes time to burst chests. 
- Alien larva now have three different icon sets, depending on their growth (25% they are bloody and pale, 25% - 75% they are pale, 75% onwards they are deep red).


Fixed up table smashing, and added rack smashing in the same way.
Added new north/south facing for the large alien queen.
Updated the changelog.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@5493 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/items/stacks/sheets/leather.dm

@@ -33,6 +33,36 @@
 	icon_state = "sheet-lizard"
 	origin_tech = ""
 
+/obj/item/stack/sheet/animalhide/xeno
+	name = "alien hide"
+	desc = "The skin of a terrible creature."
+	singular_name = "alien hide piece"
+	icon_state = "sheet-xeno"
+	origin_tech = ""
+
+//don't see anywhere else to put these, maybe together they could be used to make the xenos suit?
+/obj/item/stack/sheet/xenochitin
+	name = "alien chitin"
+	desc = "A piece of the hide of a terrible creature."
+	singular_name = "alien hide piece"
+	icon = 'icons/mob/alien.dmi'
+	icon_state = "chitin"
+	origin_tech = ""
+
+/obj/item/xenos_claw
+	name = "alien claw"
+	desc = "The claw of a terrible creature."
+	icon = 'icons/mob/alien.dmi'
+	icon_state = "claw"
+	origin_tech = ""
+
+/obj/item/weed_extract
+	name = "weed extract"
+	desc = "A piece of slimy, purplish weed."
+	icon = 'icons/mob/alien.dmi'
+	icon_state = "weed_extract"
+	origin_tech = ""
+
 /obj/item/stack/sheet/hairlesshide
 	name = "hairless hide"
 	desc = "This hide was stripped of it's hair, but still needs tanning."