Added class constructors, fixed Stripshader, added relative Tween example and updated Tween source.

src/gameobjects/BitmapData.js

@@ -957,7 +957,9 @@ Phaser.BitmapData.prototype = {
 
     }
 
-}
+};
+
+Phaser.BitmapData.prototype.constructor = Phaser.BitmapData;
 
 //  EaselJS Tiny API emulation
 

src/gameobjects/Events.js

@@ -73,4 +73,6 @@ Phaser.Events.prototype = {
 
     }
 
-};
+};
+
+Phaser.Events.prototype.constructor = Phaser.Events;

src/gameobjects/GameObjectFactory.js

@@ -318,4 +318,6 @@ Phaser.GameObjectFactory.prototype = {
 
     }
 
-};
+};
+
+Phaser.GameObjectFactory.prototype.constructor = Phaser.GameObjectFactory;