Python 3 support and a more interactive doc page

This adds a more interactive documentation page, with such exciting features as:
- collapsible sections
- the ability to try REST calls on the page and see the response (similar to a swagger-ui like this: http://petstore.swagger.wordnik.com/)
- python 3 support
- The ability to document query string args by adding some parameters to the decorator
- A little colorizing and borderizing to make long docs a little more readable