Now I've colored vertices near the centroid red, and other vertices
green. This demonstrates that I've calculated the POSITION of the
centroid correctly. However, for some reason the way that I'm rotating
the camera to look at the centroid is INCORRECT.
NOW the camera points at the centroid when we start up!
Merge branch 'master' of https://github.com/nmarshak1337/PointMan-Renderer

Conflicts:
	webgl_client/frag_globe.js