Improve initial login process / display.

This branch is an attempt to start improving the display of the initial login screen and the account management modal. *Start* being the keyword. I think that it'll be easier to iterate on once there is something in place, so although this isn't perfect it's a good step in the right direction I think.

First time you visit the app:
![image](https://cloud.githubusercontent.com/assets/17613/4367846/2d7e3f02-42e0-11e4-8533-494a8cf7012d.png)


After login when visiting room:
![image](https://cloud.githubusercontent.com/assets/17613/4367862/8178640c-42e0-11e4-8c27-3a0b1734ac06.png)

DropDown expanded:
![image](https://cloud.githubusercontent.com/assets/17613/4367865/90593974-42e0-11e4-874b-59627cd338d4.png)


Edit profile modal open:
![image](https://cloud.githubusercontent.com/assets/17613/4367868/a981d686-42e0-11e4-9d1f-1741a779ff9b.png)