chipmunk: bindings for DampedSprings
chipmunk: create native properties accessors for DampedSpring
chipmunk: properties for Constraint
chipmunk: cpBody: complete binding
chipmunk: stop leaking all the native structs
chipmunk: complete Shape binding
chipmunk: complete Space binding
chipmunk: pinjoints, slidejoints, pivotjoints, groovejoints
chipmunkL damped rotary springs, rotary limit joints, ratchet joints, gear joints, simple motors
chipmunk: Shape.Group to avoid collisions
chipmunk: collisionType property
chipmunk: Space: collision callbacks
chipmunk: Arbiters
cocos/chipmunk: new sample demonstrating joints
chipmunk: fix wrong entrypoints