pan events on components duplicate if verticalPanMixin is used

[ssendev]

related to #63

ember init
ember install ember-mobiletouch

// app/components/my-component.js
import Ember from 'ember';
import VerticalPanMixin from "ember-mobiletouch/mixins/vertical-pan";

// export default Ember.Component.extend({
export default Ember.Component.extend(VerticalPanMixin,{
  panConfiguration: {direction: Hammer.DIRECTION_HORIZONTAL},
  panEnd(e) {
    console.log('component');
    console.log(e);
  }
});

<!-- app/templates/application.hbs -->
<h2 id="title">Welcome to Ember.js</h2>
{{my-component}}

<!-- app/templates/components/my-component.hbs -->
<h1>my component</h1>

and for every panend two panends are fired. this even happens if the mixin is not on the component itself e.g. the application-view. on the application-view even with mixin only one panend is fired

--edit
okay this was on master on 2.0 events also duplicate on views

[runspired]

http://codepen.io/runspired/pen/XbGJYr?editors=001

This shouldn't be happening, am investigating.

[runspired]

This turns out to be mostly a bug in Hammer's configuration for managers and recognizers leaking which will be fixed in Hammer 2.0.5.

There may be a secondary issue I'll peak at as well.