Updated the division for the color sorting script.
Updated the division for the color sorting script.

The color sorting script now skips over black and white images. Also,
there is no more implicit priority between colors. If more than one
color is the maximum in the image (e.g. they're equal), then the image
is randomly placed into one of the bins.

bperez77/ensemble_colorization,bperez77/ensemble_colorization,bperez77/ensemble_colorization