Disposal/Pipe Dispenser can no longer be used 'remotely' or while stunned or while they are unwrenched. Fixes issue 517.

Can no longer eject the nuke disk from the nuke while stunned. Fixes issue 497.

PA can now be powered down again.

Cyborg 'skull' masks now have east and west facing sprites. Fixes issue 468.
- I encourage anyone with actual spriting skills to redo them though, I just spent 5 second in photoshop whipping these up. (icons/mob/mask.dmi the icon labeled 'Death')

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@3681 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/gamemodes/nuclear/nuclearbomb.dm

@@ -74,7 +74,7 @@
 
 /obj/machinery/nuclearbomb/Topic(href, href_list)
 	..()
-	if (usr.stat || usr.restrained())
+	if (!usr.canmove || usr.stat || usr.restrained())
 		return
 	if (!ishuman(usr))
 		usr << "\red You don't have the dexterity to do this!"

code/game/machinery/pipe/pipe_dispenser.dm

@@ -44,7 +44,7 @@
 /obj/machinery/pipedispenser/Topic(href, href_list)
 	if(..())
 		return
-	if(unwrenched)
+	if(unwrenched || !usr.canmove || usr.stat || usr.restrained() || !in_range(loc, usr))
 		usr << browse(null, "window=pipedispenser")
 		return
 	usr.machine = src
@@ -133,6 +133,9 @@
 	usr.machine = src
 	src.add_fingerprint(usr)
 	if(href_list["dmake"])
+		if(unwrenched || !usr.canmove || usr.stat || usr.restrained() || !in_range(loc, usr))
+			usr << browse(null, "window=pipedispenser")
+			return
 		if(!wait)
 			var/p_type = text2num(href_list["dmake"])
 			var/obj/structure/disposalconstruct/C = new (src.loc)

code/modules/power/singularity/particle_accelerator/particle_control.dm

@@ -93,7 +93,7 @@
 				part.update_icon()
 
 		else if(href_list["strengthdown"])
-			strength++
+			strength--
 			if(strength < 0)
 				strength = 0
 			else