Re-done the pointer handler so it respects the top-most rendered sprite in priority to anything below it, for both mouse over and click events.

Phaser/gameobjects/Sprite.ts

@@ -182,6 +182,11 @@ module Phaser {
          */
         public z: number = 0;
 
+        /**
+         * Render iteration
+         */
+        public renderOrderID: number = 0;
+
         /**
          * This value is added to the angle of the Sprite.
          * For example if you had a sprite graphic drawn facing straight up then you could set
@@ -326,6 +331,9 @@ module Phaser {
          */
         public destroy() {
 
+            //this.input.destroy();
+
+
         }
 
         /**