ID-40: Fix "services" box rendering bugs

This fixes the css fail that has been going on in the "services" section of the signed-in page:

![screen shot 2014-07-18 at 13 53 15](https://cloud.githubusercontent.com/assets/910198/3630468/a4fc7a9e-0eab-11e4-9184-cdcda14f32b7.png)

Unfortunately some other small changes I had been working on slipped in to this branch (bad git ftw). They are:

- installing the express debug toolbar, which only runs in dev mode
- including the mongoose models in `Common`. this allows them to be access from external components, like modules