#angular-touch.js Fixes for issue #5732 and #5721

###Touchend / mouseup listeners bound to window instead of element

• User can now swipe off the element and still trigger a swipe
  • performing a swipe on a drawer that only has a visual width of 50px while closed is now possible

###Improved tolerances for ng-swipe-left & ng-swipe-right

• User doesn't have to perform a ridiculous perfectly straight line in order to trigger a swipe
• Increased vertical discrepancy to account for longer swipes