In the CC client, we have a check to make sure that a file was within one

of the configured VOBs for the repository before including it in the

diff. This was hardcoding a / character, which didn't work on Windows

clients. This changes it to use os.sep.
While I was here I also updated the client name to include

"VersionVault" for better output in rbt list-repo-types.

Ran unit tests.