Port everything to class framework

The last patch in the sequence. Every place that was previously
setting prototype has been ported to Lang.Class, to make code more
concise and allow for better toString().

https://bugzilla.gnome.org/show_bug.cgi?id=664436

js/ui/tweener.js

@@ -202,11 +202,9 @@ function registerSpecialPropertySplitter(name, splitFunction, parameters) {
 // time updates; even better is to pay attention to the vertical
 // vblank and sync to that when possible.)
 //
-function ClutterFrameTicker() {
-    this._init();
-}
+const ClutterFrameTicker = new Lang.Class({
+    Name: 'ClutterFrameTicker',
 
-ClutterFrameTicker.prototype = {
     FRAME_RATE : 60,
 
     _init : function() {
@@ -261,6 +259,6 @@ ClutterFrameTicker.prototype = {
         this._startTime = -1;
         global.end_work();
     }
-};
+});
 
 Signals.addSignalMethods(ClutterFrameTicker.prototype);