Start of org-mode theme support

This is a start for org-mode support, and adds the list of org-mode faces needed to support all of org's (many) faces.

Here's a screenshot:

![screen shot 2014-11-07 at 11 59 50 am](https://cloud.githubusercontent.com/assets/19060/4951929/6333f21c-666d-11e4-8318-9fd48e2795d0.png)

Feel free to close this if you find them not to your liking!