Updating edit link on Review & Submit page.

![image](https://cloud.githubusercontent.com/assets/105849/4596135/205fdd76-50a0-11e4-9f65-efe88b81f1ef.png)

Updating universally so now `.__link`, which were links that sorta behaved like buttons and had icons, uses a `.button` class with a `.-link` modifier class :)

Resolves #420

@angaither 

CC: @barryclark @DFurnes