fix distro info failures by faking out the filename
Merge branch 'fake-distro' of https://github.com/natefinch/juju into natefinch-fake-distro
Use PatchValue
Merge pull request #947 from howbazaar/natefinch-fake-distro

Don't rely on local files for the test.

Hide the actual file for the test.

Add vivid to the ubuntu releases.