Remove wrapping from widget titles

Long widget titles no longer wrap to the next line. Their overflow remains on the same line, hidden.

![screen shot 2014-01-24 at 7 34 55 pm](https://f.cloud.github.com/assets/1398104/2000396/dc4a97b0-8558-11e3-9d3c-ec5c70f5ecdb.png)