juju/juju — pull request #796 by axw (2014-09-19 04:37:22+00:00)
Title: upgrades: add step to migrate tools to environment storage

Tools are now stored in environment storage; we need to
migrate existing ones across from provider storage.
A followup will remove provider storage from the tools
search path. I expect there to be a lot of noise due to
tests relying on the tools being there.