Basic implementation of VolumeService.clone_to().
Merge remote-tracking branch 'refs/remotes/origin/master' into volume-cloning-continued-739
Make cloned filesystems public.
Local IPC implementation of cloning.
Remote IPC support for cloning.
Lint fixes.
Minimal documentation.
Tiny doc edits
Trivial cleanups for user-facing docs for the new command line tool.
Use newest octal literal syntax.
Use conventional docstring formatting.
Merge pull request #874 from ClusterHQ/volume-cloning-continued-739

Volume cloning - fixes 739