Deprecate this repo

[betatim]

I'd like to delete this repo as we should be fine depending directly on jupyterhub instead of having our own hacked version.

Those who have committed code here, please take a look. I plan to delete the repo by March 15th 2016

[betatim]

/cc @OmeGak @ibab @anaderi

[anaderi]

seems like we have already all things from here in one form or another

[OmeGak]

If functionality has been ported then it should be fine.