implemented github repo stats table

could @ByronDarlison @tejohnso @alexey-rise  review?
PR is hosted at: http://devtools1.risevision.com:8000

trello: https://trello.com/c/q2GSadJV
![screen shot 2014-07-02 at 3 51 46 pm](https://cloud.githubusercontent.com/assets/3188890/3461385/587fe790-0222-11e4-9f15-6637bd54944a.png)