Restore touchmove event listener

Restore the touchmove event listener removed in
d48c8ba20f651b00df357d72d029bd6482a51ea0 , as a temporary fix to allow
scrolls to cancel click tracking (currently being tracked in Issue #116)
Merge pull request #136 from matthew-andrews/master

FastClick sometimes creates a click when scrolling up & back to the same spot.  Restore touchmove event listener to fix [#116]