Refactor and add GithubbersCtrl

There's still a lot more pending. I need to figure out styling on the
views and maybe turn the project's idea around. Graphing the users is
probably more useful than just showing them. Showing them on a Map isn't
*useful* because we can't get exact locations on the users.

We should be set on showing graphs for:
- The numbers of githubbers around you using some language x
- The githubbers around you with more than n followers
- Your repositories and languages opposed to the githubbers around you