Fixes issue 521.

Fixes issue 676.
Fixes issue 700.
Fixes issue 753.
Fixes issue 754.
Fixes issue 755.

Additionally I slightly cleaned up grenade code and stunglove code, and removed mustardbomb.dm (because it was fucking awful).

THIS BUGFIX TRAIN AIN'T STOPPIN'
Thanks QualityVan for the issue 521 fix, and thanks Nodrak & Tobba for pointing out my dumbness for issues 753 & 754 respectively.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@4382 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/items/weapons/stungloves.dm

@@ -27,14 +27,15 @@
 
 	else if(istype(W, /obj/item/weapon/wirecutters))
 		if(cell)
+			cell.updateicon()
 			cell.loc = get_turf(src.loc)
-			cell = 0
+			cell = null
 			user << "You cut the cell away from [src]."
 			update_icon()
 			return
 		if(wired) //wires disappear into the void because fuck that shit
 			wired = 0
-			siemens_coefficient = siemens_coefficient_archived
+			siemens_coefficient = initial(siemens_coefficient)
 			user << "You cut the wires away from [src]."
 			update_icon()
 		..()
@@ -46,7 +47,4 @@
 	if(wired)
 		overlays += "gloves_wire"
 	if(cell)
-		overlays += "gloves_cell"
-
-/obj/item/clothing/gloves/New()
-	siemens_coefficient_archived = siemens_coefficient
+		overlays += "gloves_cell"