metadata panels only show when available, adds in cc images

Closes #81 

#### tn629pk3948
![screen shot 2014-10-23 at 2 14 03 pm](https://cloud.githubusercontent.com/assets/1656824/4761582/8f0ec076-5af9-11e4-88ef-ed66558e84eb.png)

#### jm428kx6754
![screen shot 2014-10-23 at 2 13 18 pm](https://cloud.githubusercontent.com/assets/1656824/4761567/716f7d6c-5af9-11e4-882f-9c3358e0686e.png)