Github Tree

Incorporates https://github.com/thmzlt/github-tree and gets it working with private repositories. I would like to rewrite it, though. Likely will strip out FontAwesome? Though I am not sure, having tiny icons is pretty cool. Maybe I'll embrace FontAwesome instead. 

Make sure to Credit original author of Github Tree in the Readme. Maybe I should just fork his repo and fix his shit. I do like his plugin, and it does seem like people are using it. I could just "encourage" its use with mine rather than reinventing the wheel.