Refactor LHNodeProtocol
Added support for LevelHelper beta 31 UI and Game World Nodes

WORK IN PROGRESS
Refactor Animation Protocol

WORK IN PROGRESS
Refactored physics loading by adding LHNodePhysicsProtocol

WORK IN PROGRESS
Added Box2d support (WORK IN PROGRESS)
Box2d support updates (WORK IN PROGRESS)
code cleanup
collision filtering demo (WORK IN PROGRESS)
bug fixes for sprite size
Collision filtering test demo now has mouse joint.
code cleanup + native sprite kit collision filtering test updated
Added camera tests + fixes
Added animations test demo
Added parallax test demo.
Added asset demo and manual asset loading code