Bmm users can have images

https://trello.com/c/ETYddhgQ/7-as-a-user-i-can-add-a-picture-to-my-profile

![screenshot from 2014-11-18 15 08 40](https://cloud.githubusercontent.com/assets/8154429/5095124/cdbf72f8-6f34-11e4-82d9-3ccecb272d67.png)