Don't sponsor popular containers

### Before

![screen shot 2014-11-19 at 11 33 19](https://cloud.githubusercontent.com/assets/74132/5105015/e4cae85a-6fdf-11e4-84bc-fb8a71bf73e1.png)

### After

![screen shot 2014-11-19 at 11 33 23](https://cloud.githubusercontent.com/assets/74132/5105016/e907e9ae-6fdf-11e4-855c-b3464ae58bd0.png)

@janua, @robertberry  - is this the best way to achieve this?