Code review comment for lp:~blueyed/ubuntu-dev-tools/use-proxy-for-download

I'm not sure about what test exactly broke.. when running "python setup.py test" there appear to be a lot of failures:
http://paste.ubuntu.com/892919/

Apart from that I would like to fix the tests, but need some help obviously.
Thanks! (and sorry for breaking any test in the first place)