arc intersections method and intersection parameters type
path intersections method and intersection parameters type
polyline and round rectangle intersection parameters type
removal of multiple copies of intersection points in ellipse/path/polygon/polyline/rectangle/round rectangle
better handling of borderline intersections on bezier2/3 (when intersection is at end/start point) and ellipses (when intersection is of tangential type)
removed special polygon/polyline/rectangle methods - intersections calculated by one method
removed special circle methods - intersections calculated by ellipse methods