Pass the event to the onTouchStart, onTouchMove and onTouchEnd callbacks

Implicit window.event reference does not work in all browsers(Firefox for example), so we need to pass in an explicit reference to the event to the callbacks.
Merge pull request #718 from vladgurovich/patch-1

Pass the event to the onTouchStart, onTouchMove and onTouchEnd callbacks
Automatically rewritten for npm.