* Added transform constraint rotate, scale, and shear offsets and mixes.
* Added TransformConstraintTimeline.
* Added bone shearing.
* Added ShearTimeline.
* Changed Skeleton#updateCache.
* Changed JSON and binary formats. Some binary format fields and enums were rearranged for consistency -- sorry, but it's better for the long term. Docs for both are up to date.
http://esotericsoftware.com/spine-json-formathttp://esotericsoftware.com/spine-binary-format
- directory has been changed from 3.0 to just 3
- the example objective-c files end in .m not .cpp
- the runtime requires CCRenderer, which I believe is only available in 3.1+