Add backgroundColor and siteLogo to persona calls

It ends up looking like this:

![screen shot 2013-11-25 at 4 41 08 pm](https://f.cloud.github.com/assets/55319/1617352/b9c333e0-561a-11e3-89f0-e736f67e4b9a.png)

Good?

<img src="http://cdn.sneakhype.com/wp-content/uploads/2011/11/thanksgiving.gif">