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.
Let's use this naming scheme:
* local: my repo, checked out on my developer machine
* remote: my repo on Github
* upstream: another person's Github repo that mine is forked from