Updated add role workflow

Expected behavior:
  - Un-focusing the add role button should get rid of any text inside of it
  - Clicking on the members should bring up their edit menus

 I'm thinking about adding a button to actually add the roles, if you think it's necessary.

Some screenshots:

![screen shot 2014-11-04 at 11 07 59 pm](https://cloud.githubusercontent.com/assets/6354033/4913959/1acdbbf6-64bb-11e4-8e4d-fd6241572824.png)

![screen shot 2014-11-04 at 11 08 15 pm](https://cloud.githubusercontent.com/assets/6354033/4913955/12b92e0a-64bb-11e4-96e8-9f761a59df94.png)

![screen shot 2014-11-04 at 11 11 22 pm](https://cloud.githubusercontent.com/assets/6354033/4913954/0cc48364-64bb-11e4-97d9-25a4f92a43c3.png)