Ensure text inside featured comments wraps. Fixes: #3165

### Before
![google chrome](https://f.cloud.github.com/assets/80089/2194349/c5938424-988a-11e3-9810-2fb3142f9c90.png)

### After
![google chrome](https://f.cloud.github.com/assets/80089/2194403/cbf56f94-988a-11e3-9649-16c72999aece.png)