Merge pull request #183 from bepetersn/v2.0-dev

V2.0 dev -- first test added, with nose
simplified fab's 'capture_latest_commit_id' function
installed config file updating -> simplified
Merge branch 'v2.0-dev' of https://github.com/sc3/cookcountyjail into v2.0-dev
refactored fabfile to include more comments, and be in more of a chronological order of calls