Function triggerDomEvent

docs/tests/v2/es6/js/sanddance.js:53906–53911

* trigger dom event * @param {String} event * @param {Object} data

(event, data)

  function triggerDomEvent(event, data) {
    var gestureEvent = document.createEvent('Event');
    gestureEvent.initEvent(event, true, true);
    gestureEvent.gesture = data;
    data.target.dispatchEvent(gestureEvent);
  }

  assign(Hammer, {
    INPUT_START: INPUT_START,