Merge pull request #1 from ericf/dual-listener

Make a prevented tap event only prevents the associated click.
Conflicts:
	src/event/js/tap.js
	src/event/tests/manual/tap-tests.html
fix typo
remove SUPPORTS_TOUCH and clean up sensitivity check
fix issue where longpressing caused `tap` to fire twice
remove console.log
reset `subscription.preventMouse`
up the setTimeout delay to 100ms to work on Android 4.0.3.
add dual listener when on a touch-enabled browser