Moar sidebar stuff

Looks like this:

![screen shot 2014-08-25 at 4 26 20 pm](https://cloud.githubusercontent.com/assets/2289/4038152/b2c7cec2-2caf-11e4-97a4-00bf71ba4158.png)

I think [this comp](https://rollout-assets.basecamp.com/2542260/projects/6178093/attachments/94813244/3256a03752f94e7301858eea1b412ada0010/original/npm-package_5plusauthors_r02.png) is the original design goal for packages with multiple maintainers (à la express).

There are other configurations for 1 and 4 maintainers as well. Though now that I think about it, I don't really know what the goal is for 2 or 3 maintainers... Let's discuss :-)