Fix #1554 by adding some word breaking styles

Fixes #1554 

Now it does this:
![image](https://f.cloud.github.com/assets/7574/1386713/47c4b4b2-3b7b-11e3-8ed5-c8ec1abbd316.png)
Not perfect, but better.

Also, fixed word breaking on the package details page:
![image](https://f.cloud.github.com/assets/7574/1386715/5fd8793a-3b7b-11e3-83a3-2d5f660b0c1e.png)