add finalizers

core

@@ -1 +1 @@
-Subproject commit cf0fe0434d2cd48f9f255c5371f280c1cbe07f1f
+Subproject commit 05e90da34584f98a6b7d46f7b22e8701a5b3d285

main.lua

@@ -123,6 +123,8 @@ end
 _unrequire('Super')
 _unrequire('Color')
 _unrequire('Gradient')
+_unrequire('Widget')
+_unrequire('Patterns')
 
 _unrequire = nil
 

schema/Patterns.lua

@@ -1,6 +1,7 @@
 local M = {}
 
 local Color = require 'Color'
+local Util 	= require 'Util'
 
 local WHITE = 0xffffffff
 	
@@ -65,4 +66,6 @@ M.TRANSPARENT_BLUE = Color.Gradient{
 	Color.ColorStop{hex_rgba = BLUE1, stop = 1.0, force_alpha = 1.0}
 }
 
+M = Util.set_finalizer(M, function() print('Cleaning up Patterns.lua') end)
+
 return M