dahlia/wand — pull request #152 by admire93 (2013-09-25 08:45:05+00:00)
Title: Add quantize() method

Add `wand.image.Image.quantize` method using [`MagickQuantizeImage` ](http://www.imagemagick.org/api/MagickWand/magick-image_8c.html#a966679d9ed380816f82d267100a75c5c).