title: Click event not working in IE11
body: <p>i am shocked to see that </p>
  
  <pre><code>var stage = new createjs.Stage("demoCanvas");
          var circle = new createjs.Shape();
          createjs.Touch.enable(stage);
          circle.graphics.beginFill("red").drawCircle(0, 0, 50);
          circle.x = 100;
          circle.y = 100;
          circle.addEventListener("click", function (evt) { 
              alert('clicked'); 
          }, false);
          stage.addChild(circle);
          stage.update();
  </code></pre>
  
  <p>is not working in the IE11 on my window surface. Any substitute for this event so i can perform click function</p>