Test Architecture Tweak

As I was starting to write tests for sync-fork, wanted to try and simplify the test architecture a little bit.
Tests now update the remote with a second repository instead of using local and resetting.
This was just easier for me to think about and more closely mirrors reality.

@kevgo what do you think?

Note: I used git-extract to pull this off my sync-fork branch.
Okay. I agree and will be adding upstream to my git sync fork branch. coworker is meant to be a second developer's checkout of the Github repo. Do you want to use another name?