Corrected font names, which were causing images to not render in product...

...ion mode.

Before:
![screen shot 2014-07-18 at 10 47 03 am](https://cloud.githubusercontent.com/assets/1287144/3627473/2b9f3c20-0e8a-11e4-8287-e195cdd68995.png)
After:
![screen shot 2014-07-18 at 10 47 15 am](https://cloud.githubusercontent.com/assets/1287144/3627472/2b9ab376-0e8a-11e4-8c56-75bacc22bbc8.png)