Merge branch 'fc/remote-bzr'

New remote helper for bzr, with minimum fix squashed in. * fc/remote-bzr: remote-bzr: detect local repositories remote-bzr: add support for older versions of bzr remote-bzr: add support to push special modes remote-bzr: add support for fecthing special modes remote-bzr: add simple tests remote-bzr: update working tree upon pushing remote-bzr: add support for remote repositories remote-bzr: add support for pushing Add new remote-bzr transport helper