Add rename/mv command.
This is the logical equivalent of copy and remove, and is in fact
implemented as such. It doesn't use the remove command directly.
requesting all changes
adding changesets
adding manifests
adding file changes
added 0 changesets with 0 changes to 0 files
0
changeset: 0:61c9426e69fe
tag: tip
user: test
date: Thu Jan 1 00:00:00 1970 +0000
summary: test
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions
foo
pulling from old-http://localhost:20059/remote
searching for changes
no changes found