Merge pull request #380 from Markolie/master

Adds celsius to the freezer/heater, crafting update

code/modules/research/designs/weapon_designs.dm

@@ -78,6 +78,16 @@
 	build_path = /obj/item/weapon/gun/energy/lasercannon
 	locked = 1
 	category = list("Weapons")
+	
+/datum/design/receiver
+	name = "Modular Receiver"
+	desc = "A prototype modular receiver and trigger assembly for a variety of firearms."
+	id = "receiver"
+	req_tech = list("combat" = 5, "materials" = 4)
+	build_type = PROTOLATHE
+	materials = list("$metal" = 6500, "$silver" = 500)
+	build_path = /obj/item/weaponcrafting/receiver
+	category = list("Weapons")
 
 /datum/design/plasmapistol
 	name = "Plasma Pistol"