Major update: 1.8.0

- See some release notes at http://www.greensock.com/update-2013-01/
- The css:{} wrapper is now optional for animating DOM elements. The
engine will automatically create it for you if it senses the target is
a DOM element.
- Adds TweenLite.selector so that you can pass strings as the target of
tweens and GSAP will use the selector engine of your choice (jQuery if
loaded, or defaults to document.getElementById())
- Added new jquery.gsap.js plugin that causes the jQuery.animate()
method to use GSAP under the hood. See
http://www.greensock.com/jquery-gsap-plugin/
- Implemented the API change to TimelineLite and TimelineMax (see
http://www.greensock.com/v12-api-change/ for details)
- Version values are now strings like "1.8.0" instead of numbers like
1.80
- boxShadow now recognizes the "inset" keyword.