Catalog styling cleanup

Removed fieldsets, dl and dd tags, cleaned up formatting

Before:
![screen shot 2014-07-07 at 5 10 19 pm](https://cloud.githubusercontent.com/assets/1287144/3501864/050abd2c-061b-11e4-8545-3f9595ec79d8.png)
After:
![screen shot 2014-07-07 at 5 09 26 pm](https://cloud.githubusercontent.com/assets/1287144/3501865/051304f0-061b-11e4-8d8b-d7bdc7a28571.png)