Updated Mesecons and Pipeworks mods

- Updated pipeworks because of a bug related to vacuuming tubes, which has
  caused at least 5 crashs.
- Updated mesecons too, because the mods are often used together.

mods/mesecons/mesecons_luacontroller/init.lua

@@ -559,7 +559,6 @@ for d = 0, 1 do
 		node_box = node_box,
 		on_construct = reset_meta,
 		on_receive_fields = on_receive_fields,
-		on_timer = handle_timer,
 		sounds = default.node_sound_stone_defaults(),
 		mesecons = mesecons,
 		digiline = digiline,
@@ -600,7 +599,7 @@ minetest.register_node(BASENAME .. "_burnt", {
 	groups = {dig_immediate=2, not_in_creative_inventory=1},
 	drop = BASENAME.."0000",
 	sunlight_propagates = true,
-	selection_box = selectionbox,
+	selection_box = selection_box,
 	node_box = node_box,
 	on_construct = reset_meta,
 	on_receive_fields = on_receive_fields,