Added missing properties for cp.SegmentShape
Added type and verts property for cp.PolyShape
Modify verts of cp.PolyShape to be compatible with Chipmunk.js
Added planes property of cp.PolyShape
Added a test for properties of shape
Fixed typos
Fixed memory leak in bindings of cpSplittingPlane
Update README.md
Merge pull request #1083 from joshuastray/shape

add missing properties of cp.SegmentShape and cp.PolyShape