Initial pass at the discovery-page

This is a rough pass.

Here's an updated image ![updated-image](https://dl.dropboxusercontent.com/u/16395906/Screen%20Shot%202013-05-21%20at%205.29.23%20PM.png)

I fixed the sidebar (cc @addyosmani)

We still need to decide on the mustache/hat/or stars.

Also the table is fluid right now which breaks on filters (needs some work).

But at least we can move the conversation here :)