Update logo with pulitzer tagline

Championes

![screen shot 2014-10-28 at 15 10 07](https://cloud.githubusercontent.com/assets/1607666/4810605/86998322-5eb4-11e4-89cf-e5949ad563ca.png)
Why have you added it to the SVG??? A simple `<span>` would some css positioning would suffice rather than doubling the size of the svg.