'Suggestsions' link in footer to github issues

Adds a link 'report an issue' link to the 'open source' message in the footer.

![screen shot 2014-10-22 at 4 39 44 pm](https://cloud.githubusercontent.com/assets/1239550/4731597/1c26456a-5a0a-11e4-9aed-5ef29ada75f9.png)

closes #363