Added useCapture flags to removeEventListener where approriate

Event listeners added with true passed in as the useCapture flag are only removed when true is also passed into the removeEventListener call. Adding this flag to the stop method where appropriate fixes a memory leak in IE where events on window are never removed.

See https://msdn.microsoft.com/en-us/library/ff975250(v=vs.85).aspx

Author: pmcmonagle

src/input/MSPointer.js

@@ -428,17 +428,17 @@ Phaser.MSPointer.prototype = {
         canvas.removeEventListener('MSPointerDown', this._onMSPointerDown);
         canvas.removeEventListener('MSPointerMove', this._onMSPointerMove);
         canvas.removeEventListener('MSPointerUp', this._onMSPointerUp);
-        canvas.removeEventListener('MSPointerOver', this._onMSPointerOver);
-        canvas.removeEventListener('MSPointerOut', this._onMSPointerOut);
+        canvas.removeEventListener('MSPointerOver', this._onMSPointerOver, true);
+        canvas.removeEventListener('MSPointerOut', this._onMSPointerOut, true);
 
         canvas.removeEventListener('pointerdown', this._onMSPointerDown);
         canvas.removeEventListener('pointermove', this._onMSPointerMove);
         canvas.removeEventListener('pointerup', this._onMSPointerUp);
-        canvas.removeEventListener('pointerover', this._onMSPointerOver);
-        canvas.removeEventListener('pointerout', this._onMSPointerOut);
+        canvas.removeEventListener('pointerover', this._onMSPointerOver, true);
+        canvas.removeEventListener('pointerout', this._onMSPointerOut, true);
 
-        window.removeEventListener('MSPointerUp', this._onMSPointerUpGlobal);
-        window.removeEventListener('pointerup', this._onMSPointerUpGlobal);
+        window.removeEventListener('MSPointerUp', this._onMSPointerUpGlobal, true);
+        window.removeEventListener('pointerup', this._onMSPointerUpGlobal, true);
 
     }