Adding GSAP 1.9.7

- Improved iOS and Safari performance

- GSAP is now compatible with AngularJS's jqLite objects.

- Added feature to KineticPlugin so that it now works with DirectionalRotationPlugin

- Added auto-sensing of zero-duration tweens in the to() and fromTo() convenience methods of TimelineLite and TimelineMax so that immediateRender is automatically set in the most intuitive way (you can still override that). Basically, it zero-duration values get forwarded to the set() method.

- Fixed issue that could cause an error to be thrown in IE8 (and earlier) or Opera on transform-related properties that aren't supported. For example, if you tried to set transformStyle in IE8 or a perspective in Opera.

- Fixed very rare issue that could cause a tween to be killed prematurely if kill() was called for a particular property before the tween had fully initted.

- Fixed an issue that could cause a tween to be overwritten when it's back-to-back in a timeline with another tween of the same object/property and a rounding error occurs, making things 0.0000000001 off. (EXTREMELY rare)

- Fixed issue in TextPlugin that could cause non-breaking spaces to be added when the new text is shorter than the old text (this could look odd if the text-align is center). You can get the behavior back by setting padSpace:true.