Register click and touch event separately

[szwacz]

Fix for #374
Credit goes to @kaib84 but I'm doing the PR because of lack of response from that gentleman.

[nathancahill]

Beyond that, it fixes #276, #301, #303, #324, #366 and #386. @rikkert, this should be merged and all of those can be closed.

[rikkert]

Ok, this makes sense. But didn't we have this before and it still gave issues?
Also doesn't this result in _onMouseDown running twice because touch devices still handle mousedown?

[nathancahill]

As I understand it (and from my limited testing on my devices) even when both listeners, only one or the other fires on click/tap. It looks like @kaib84 did more testing in #374

[szwacz]

Indeed the event fires twice! But followed advice from this: http://www.html5rocks.com/en/mobile/touchandmouse/ and it isn't any more.

[nathancahill]

👍 thanks @szwacz

[duizendnegen]

awesome, thanks