IE 11 support

Added un-prefixed touch-action CSS attribute
added un-prefixed PointerEvents event handler hooks
IE11 Support

Added unprefixed touch-action CSS attribute
Added unprefixed pointer events handlers hooks
windows.navigator.pointerEnabled

for backward compatibility reasons, IE11 sets both msPointerEnabled and
pointerEnabled. Changed the order for the test and added 'else if' to
not duplicate handlers on pointer events
merge support for ie 11 touch
code format tweaks
readme tweak