[HOLD] A1.2 Adds a contacts page to the app.

This page displays all of the users different "contacts" including friends, groupmates, and family. 
![device-2013-06-14-103629](https://f.cloud.github.com/assets/2251119/655011/3b030c80-d508-11e2-8af9-dd76aa1d4ace.png)