Added to our growing list of user pages should be the user gallery,
hosted at /u/{username}/gallery/

This should have a paginated list of all works done by this
author.

See also on pagination:
`http://bugs.foocorp.net/issues/329 <http://bugs.foocorp.net/issues/329>`_

We haven't explained now what kind of patches we want or how to
push a branch for us to merge in the docs. Well, at least we
haven't explained the patch part well. We should basically give an
example tutorial session on how to submit a proper patch.

We should make an atom feed so you can subscribe to users' posts.

We already have werkzeug as a dependency and it looks like that
includes an atom feed generator:

`http://flask.pocoo.org/snippets/10/ <http://flask.pocoo.org/snippets/10/>`_

Whomever works on this should:


-  add the feed
-  link to the feed on the user profile
-  add appropriate metadata to the page so the browser indicates
   there's an available atom feed