Angular Colorpicker

An angular colorpicker for use with angular views. Fashioned after [jQuery Minicolors] (https://github.com/claviska/jquery-miniColors/).
This is mixing `A-F` and the `/i` flag, which makes the regex case insensitive.

I feel this method is intended to replace the `#`, but it will also replace characters in the middle, is that what you want it to do? (`MinicolorsService.parseHex('#banana')` -> `baaa`)