Added Contact info

Fixes #757 

Note: this is different from the stuff Tim's working on which is about updating the Report Abuse/Contact Owners workflow. This is just a simple master Contact Us page.

Attached are two images of new UI, the Contact Us link and the Fork Me on GitHub banner

![Contact Us](https://f.cloud.github.com/assets/7574/255253/4bf90330-8c08-11e2-82ff-c700fff081f9.PNG)

![Fork on GitHub](https://f.cloud.github.com/assets/7574/255263/686c04b8-8c08-11e2-904c-ec653538f047.PNG)