Remove user on quit

pulls user from local config.
![screen shot 2014-09-03 at 10 12 42 am](https://cloud.githubusercontent.com/assets/2591516/4138072/c5807dcc-338d-11e4-8984-a81b29a5d4db.png)
![catkick](https://cloud.githubusercontent.com/assets/2591516/4138084/e83f711a-338d-11e4-9a9e-d69e47838b2a.gif)
closes #53