Add a less-orange Pace.js theme

Got angry at the ugly orange Pace.js theme we had so I made this.

![](https://s3.amazonaws.com/f.cl.ly/items/3r2A250q2B3q2Z0Y2Y0a/Screen%20Recording%202014-12-12%20at%2001.48%20AM.gif)

Thoughts?  Improvements?