Bug 944704, part 1 - Extend Moz2D's ArcToBezier helper so that it can draw ellipse arcs in addition to circle arcs. r=Bas
Bug 944704, part 2 - Update the Mozilla callers of Moz2D's ArcToBezier for its new signature. r=Bas
Bug 944704, part 3 - Fix stroke dashing for SVG ellipses so that the dashing starts from the correct point and progresses in the correct direction. r=Bas