Added logout 

![screen shot 2014-06-21 at 12 30 09](https://cloud.githubusercontent.com/assets/520376/3349795/86964918-f97a-11e3-8350-3a3fc9dbff58.png)
![screen shot 2014-06-21 at 12 30 09](https://cloud.githubusercontent.com/assets/520376/3349796/9cdf59d0-f97a-11e3-910f-de4d1e4ba8a7.png)