If you want to recognize two gestures simultaneously, you can use the the recognizeWith() method. The example
below does this with the pinch and rotate recognizers, which will improve usability.
var pinch = new Hammer.Pinch();
var rotate = new Hammer.Rotate();
pinch.recognizeWith(rotate);
Now Hammer is able to run pinch and rotate the same time. You can also separate them with the dropRecognizeWith() method on
the recognizer instance.
