Style guide parser for stylus

I created a style guide parser and generator which supports stylus.

It is inspired by [kss](https://github.com/kneath/kss/issues/54).

A live preview:

[![Screen Shot 2013-01-08 at 8 11 27 PM](https://f.cloud.github.com/assets/290496/50049/8e4f0ad2-598f-11e2-8c7c-a811a425ea2a.png)](http://lab.lepture.com/ganam/guide/buttons)

Style guide syntax example: [buttons.styl](https://github.com/lepture/ganam/blob/master/docs/guide/buttons.styl).


Hope it can be listed in readme.