Site footer links don't stack correctly in IE7

It looks like:

![Screen Shot 2013-04-23 at 10 56 11](https://f.cloud.github.com/assets/67366/413711/2837442a-abfc-11e2-81ac-08cbee3b9d4c.png)

It's because of this:

![Screen Shot 2013-04-23 at 10 56 46](https://f.cloud.github.com/assets/67366/413713/2bb02d92-abfc-11e2-9332-7d278c64bfa0.png)