juju/docs — pull request #55 by sinzui (2014-04-10 04:05:30+00:00)
Title: Explain get-env, set-env, unset-env, and upgrade-juju.

We added the unset-env command last month, but didn't document it. I added an explanation of the *-env commands. I also mentioned juju-upgrade, then realised it wasn't documented either.