fixed issue with docs
changed Vertices.create and Vertices.fromPath to create and return a new array rather than apply in-place
added Body.setVertices and Vector.clone
changed Body._initProperties to use Body.setVertices
fixed critical inertia calculation issue, a potential breaking change, so Body._inertiaScale added to try preserve previous behaviour
fixed chaining for some Matter.Vertices methods
fixed Body.setVertices
added Body.setPosition, Body.setAngle, Body.setVelocity, Body.setAngularVelocity
added Demo.manipulation
improved Demo.manipulation