Add styleguide

This is the styleguide.

* Get the code
* run `npm install`
* run `grunt styleguide` 

![screen shot 2014-03-05 at 15 23 23](https://f.cloud.github.com/assets/1514/2334569/240a1310-a47a-11e3-87ab-0bd1c787c54b.png)