Public Profile Page

# Public Profile Page

This changeset add in the publicly accessible profile page for identity users and is available to all under the new route `/user/<userDisplayName>`. This page uses the new `/users/vanityurl/<userVanityUrl>` route from [Identity Pull Request #137.](https://github.com/guardian/identity/pull/137)

![ppp](https://f.cloud.github.com/assets/1170410/2387541/faf23ac6-a937-11e3-9e97-648d48a5c082.png)

It will eventually contain a users comment history aswell and be linked to from discussions per user.

*A problem with my environment currently prevents me from getting the new test for this route to pass so I am not including it here for the time being, pull request is being submitted though so that QA can start on the work.*

![gjlgsza](https://f.cloud.github.com/assets/1170410/2387601/b1d6cf4a-a938-11e3-8116-11764b71bbdb.gif)