done

I've been considering adding a git-annex-shell command. This would be similar to git-shell (and in fact would pass unknown commands off to git-shell).

Reasons

• Allows locking down an account to only be able to use git-annex (and git).
• Avoids needing to construct complex shell commands to run on the remote system. (Mostly already avoided by the plumbing level commands.)
• Could possibly allow multiple things to be done with one ssh connection in future.
• Allows expanding ~ and ~user in repopath on the remote system.