F2 1.1

Pull request to track F2 1.1. Included in this release:

* Merging previously separate Specification and F2.js versions into simultaneous releases
* Support for AMD module loading, see #22 and #25 
    * Allows for F2.js to be loaded as an AMD module, or not.  Also permits F2 to play more nicely within existing AMD containers. jQuery is also bundled as a dependency.
* Adding source maps, #28 
* Fixed #24 
* More unit tests, following #23 
* Typos and other minor changes
* Bug fixes