Pre-release of Juju 1.11.2 for OSX (testing needed)

[David Cheney]

> Dave, here is the link to the updated version of the formula:
> https://github.com/rochacon/homebrew/blob/juju-core-source-proposal/Library/Formula/juju.rb
> (For some reason I can't open a pull request to your fork.)

Doesn't matter, just copy and paste from whatever was in my fork,
there is no change history of note to care about.