Fix vines nodetimer never starting on new nodes (#76)

f01e4bb55f removed these nodes but registered wrong aliases

trunks/nodes.lua

@@ -126,8 +126,8 @@ for r = 0, 3 do
 	})
 end
 
-minetest.register_alias("trunks:moss_plain", "trunks:moss_plain_0")
+minetest.register_alias("trunks:moss", "trunks:moss_plain_0")
-minetest.register_alias("trunks:moss_with_fungus", "trunks:moss_with_fungus_0")
+minetest.register_alias("trunks:moss_fungus", "trunks:moss_with_fungus_0")
 
 -----------------------------------------------------------------------------------------------
 -- TWiGS BLoCK

vines/init.lua

@@ -197,7 +197,7 @@ vines.register_vine = function( name, defs, def )
 					minetest.set_node(bottom, {
 							name = node.name, param2 = node.param2})
 
-					local timer = minetest.get_node_timer(bottom_node)
+					local timer = minetest.get_node_timer(bottom)
 
 					timer:start(math.random(growth_min, growth_max))
 				end