Pave the way for a future of productivity

Dear @r00k,

This creates an index page for all our amazing [trips](https://github.com/codecation/trips) and moves clojure-rica to a subdirectory. I hope we can fill this up with some awesome stuff. :sparkles: 

When this lands:

- The index page will live at [`codecation.github.io`](http://codecation.github.io/)
- Clojure-rica will live at [`codecation.github.io/2014-02-clojure-rica`](http://codecation.github.io/2014-02-clojure-rica)

I noticed this morning that our old url (clojure-rica.github.io) is 404ing anyway. We don't need to worry about breaking links.

![screen shot 2014-05-28 at 12 47 46 pm](https://cloud.githubusercontent.com/assets/65323/3110063/f75db22c-e6a0-11e3-9b66-721e27f7dce1.png)

![screen shot 2014-05-28 at 12 47 16 pm](https://cloud.githubusercontent.com/assets/65323/3110058/e5d04a10-e6a0-11e3-931c-a046a617b8b0.png)