Building_blocks Alias (#398)

Alias for old node Tar cut by moreblocks.

building_blocks/alias.lua

@@ -18,6 +18,7 @@ if minetest.get_modpath("moreblocks") then
 	end
 	minetest.unregister_item("moreblocks:tar")
 	minetest.register_alias("moreblocks:tar", "building_blocks:Tar")
+	stairsplus:register_alias_all("moreblocks", "tar", "building_blocks", "Tar")
 end
 
 minetest.register_alias("adobe", "building_blocks:Adobe")
@@ -53,4 +54,4 @@ if not minetest.get_modpath("technic") then
 				tiles={"technic_granite.png"},
 		})
 	end
-end
+end