Box2d Integration - WORK IN PROGRESS
Box2d support - updated supported shape types
Downgraded Box2d to 2.2.1 (newer version has a  problem with certain polygons)
Box2d integration - WORK in PROGRESS
Box2d scaling support
Added support to remove the physics body from a node.
Fixed camera issue
Added Box2d camera support.
Box2d gravity area - WORK in PROGRESS
Debug mode for gravity area + y direction fix.
Gravity area debug mode chipmunk target fix.
Water area support for Box2d
Added UI support
Added joint protocol - cleaner code when dealing with joints.
Box2d rope joint support
Added revolute joint support. Box2d mostly - When using with chipmunk will create a pin joint and display a warning.
Added Pulley Joint (only Box2d)
Added Weld Joint (Box2d only)
Added Prismatic Joint (Box2d Only)
Added Wheel Joint support (Box2d only)
Gear Joints support (Box2d only)
Merge pull request #1 from vladubogdan/develop

Bring Box2d support to master.