hidden files it's making me commit
palette finder updates

1) Palette finder now gets the nearest existing color in the image from
the first pass at quantization. It is easy to switch between these.
Line 247 of quantize.js is responsible for selecting the colors to form
the color palette. vb.color means average color; vb.representative
means closest available color.

2) Updated palette builder code to place circles on the color that is
the shortest distance from the palette color. All circles are found now.