Remove repo_path arg from commands and make them open the repo
Remove repo_path arg from commands and make them open the repo

Calling repo.open() in each command kind of sucks, but it's necessary to
allow the commands to be called anywhere with the --help option. (If we
tried to automatically open the repo before the commands started
executing, calling them with --help wouldn't work if we were outside a
repository.)

mcgid/morenines,mcgid/morenines