Updating GSAP to 1.11.7

- Performance improvements

- TimelineLite/Max will now intelligently use TweenMax instances instead of TweenLite instances in the convenience methods like to(), from(), and fromTo() if TweenMax is present and the tween has a "repeat" defined.

- Added caching algorithm for the width of elements when conversion to/from % is required multiple times on the same "tick" for the same element.

- Fixed issue that could cause roundProps not to round SUPER large values correctly.

- Fixed issue that could cause IE9 not to remove prefixed CSS values with clearProps (like transforms)

- Improved Draggable's handling of transformed ancestor elements, including the <body>, as well as partially-scrolled elements

- Eliminated some extra snap function calls in Draggable

- Exposed drag() method in Draggable

- Fixed bug in jquery.gsap.js that could cause queued jQuery animations not to work properly and use excessive memory.