Fix not being able to place armor on anvil (#19)

* fix not being able to place armor on anvil
* check for node on_rightclick on armor equip

3d_armor/api.lua

@@ -106,7 +106,14 @@ armor.register_armor = function(self, name, def)
 	def.on_secondary_use = function(itemstack, player)
 		return armor:equip(player, itemstack)
 	end
-	def.on_place = function(itemstack, player)
+	def.on_place = function(itemstack, player, pointed_thing)
+		if pointed_thing.type == "node" and player and not player:get_player_control().sneak then
+			local node = minetest.get_node(pointed_thing.under)
+			local ndef = minetest.registered_nodes[node.name]
+			if ndef and ndef.on_rightclick then
+				return ndef.on_rightclick(pointed_thing.under, node, player, itemstack, pointed_thing)
+			end
+		end
 		return armor:equip(player, itemstack)
 	end
 	minetest.register_tool(name, def)