Added native CatmullRomSpline class with bindings exposed to LoomScript.  Currently only supports evaluating Tuples (ie. x,y float object, like a Point), but can relatively easily be expanded for Triples and Quadruples as the Template logic is already in place for that.
Added CMR firstDerivative and arcLength functions
Merge branch 'LFL-DD-CatmullRomSpline' into DDMaster
Added some asserts to QuadBatch addQuad() to warn users of unsupported functionality.
Merge branch 'LFL-Quad-And-Rendering-Additions' into DDMaster