Ensure right-floated counts appear before label.

This will allow for proper document flow where the category label can be truncated using `text-overflow` if need be.

![image](https://cloud.githubusercontent.com/assets/1174718/3067828/54e8ada2-e287-11e3-8684-e606e2c15e96.png)

![image](https://cloud.githubusercontent.com/assets/1174718/3067836/7039ae9e-e287-11e3-8a62-de3ec5ed1a20.png)