-voronoi_utility.py:
	-attempting to properly sort the Voronoi region polygon vertices using a more recent version of scipy (vertices attribute of ConvexHull)
	-removal of old Voronoi region vertex sorting code
	-suppression of some debug print statements
	-the Voronoi region polygon vertex ordering is looking much better based on interactive testing, but there are still at least a few issues--some of which are possibly upstream in the workflow