Massive checkin...
[changed] Skin format from XML to JSON so we get automated and read/write serialization.
[added] No arg constructors to NinePatch and all skin styles.
[updated] BitmapFont, added access to image file.
[updated] BitmapFont "uses integer", mostly because I like changing things.
[updated] scene2d, better defined semantics of touchUp, touchDown, and touchDragged. touchUp returning true means the actor will receive focus.
[updated] Group, added transform boolean so we can have axis aligned groups that don't cause a batch flush.
[deleted] Old actor classes.
[updated] Rewrote FlickScrollPane.
[added] Label methods.
[updated] ScissorStack, prevent from scissoring zero size.
[updated] JsonWriter, separated setting the name from methods that start an object and array. Support for multiple JSON-like output formats.
[updated] Json, completely refactored, more and better thought out methods.
[updated] JsonReader, reads non-JSON, JSON-like formats.
[updated] Some tests that have been broken over time.
[added] GestureDetector.