Added list of person's authored publications

Person profile now shows the publications they are the author of. If a person has no publications it is not shown.

![persons publications](https://f.cloud.github.com/assets/565736/2395883/5ad625e0-a9d0-11e3-892f-a4783a6bc496.png)

I think this feature is self-contained and can be merged into master before any other changes to people profiles are made. Please review the code and merge if/when it's appropriate.