Moved the pager of categories closer to the table of categories

Before:
![image](https://f.cloud.github.com/assets/2565497/1974162/c72db902-8369-11e3-8a69-1ae161b4ab2e.png)

After:
![image](https://f.cloud.github.com/assets/2565497/1974169/da9b9e3c-8369-11e3-9ce1-ab4a7f90825a.png)