Adds Serdy's Robobutt

Also adds a general cyberlimb whitelisting system since that's apparently needed now.

App: http://forum.vore-station.net/viewtopic.php?f=45&t=875

code/modules/organs/robolimbs_vr.dm

@@ -1,28 +1,40 @@
 /datum/robolimb
 	var/includes_tail			//Cyberlimbs dmi includes a tail sprite to wear.
+	var/list/whitelisted_to		//List of ckeys that are allowed to pick this in charsetup.
 
+//////////////// For-specific-character fluff ones /////////////////
 // arokha : Aronai Kadigan
 /datum/robolimb/kitsuhana
 	company = "Kitsuhana"
 	desc = "This limb seems rather vulpine and fuzzy, with realistic-feeling flesh."
-	icon = 'icons/mob/human_races/cyberlimbs/kitsuhana.dmi'
+	icon = 'icons/mob/human_races/cyberlimbs/_fluff_vr/aronai.dmi'
 	blood_color = "#5dd4fc"
 	includes_tail = 1
 	lifelike = 1
 	unavailable_to_build = 1
-	unavailable_at_chargen = 1
+	whitelisted_to = list("arokha")
 
 /obj/item/weapon/disk/limb/kitsuhana
 	company = "Kitsuhana"
 
+// silencedmp5a5 : Serdykov Antoz
+/datum/robolimb/white_kryten
+	company = "White Kryten Cybernetics"
+	desc = "This limb feels realistic to the touch, with soft fur. Were it not for the bright orange lights embedded in it, you might have trouble telling it from a non synthetic limb!"
+	icon = 'icons/mob/human_races/cyberlimbs/_fluff_vr/serdykov.dmi'
+	blood_color = "#ff6a00"
+	unavailable_to_build = 1
+	whitelisted_to = list("silencedmp5a5")
 
+/obj/item/weapon/disk/limb/white_kryten
+	company = "White Kryten Cybernetics"
 
+//////////////// General VS-only ones /////////////////
 /datum/robolimb/talon //They're buildable by default due to being extremely basic.
 	company = "Talon LLC"
 	desc = "This metallic limb is sleek and featuresless apart from some exposed motors"
 	icon = 'icons/mob/human_races/cyberlimbs/talon/talon_main.dmi' //Sprited by: Viveret
 
-
 /obj/item/weapon/disk/limb/talon
 	company = "Talon LLC"