Feature/tw 16 design login page


![screen shot 2014-12-08 at 20 15 16](https://cloud.githubusercontent.com/assets/407891/5345303/1834bf90-7f17-11e4-862a-2d9a35185626.png)
![screen shot 2014-12-08 at 20 15 21](https://cloud.githubusercontent.com/assets/407891/5345302/18185fd0-7f17-11e4-9c7d-866661a26de8.png)