Fix issue #62 Show correct review style in challenge detail

Fix for  https://github.com/cloudspokes/direct-app/issues/62

SS for 'internal':
![image](https://cloud.githubusercontent.com/assets/2527455/5126949/8956c7da-7103-11e4-8ea6-3e83a6ae94ab.png)


SS for 'community':
![image](https://cloud.githubusercontent.com/assets/2527455/5126978/bb19c07e-7103-11e4-9a4c-94fb84e46c7b.png)