In order to provide a faster and simpler working model, this plugin
tries to support a configuration similar to git and Mercurial's
colocated branches, where there is a single working tree that can
be switched between multiple branches that all co-exist in the same
directory. This working model is entirely possible using Bazaar's
existing technology, and this plugin aims to make it as simple as
possible to use that model.

WWW: https://launchpad.net/bzr-colo