* Completed support for rsync and rsyncd, including restore.

* Completed support for rsync and rsyncd, including restore.

* Added optional user-defined pre/post dump/restore commands, allowing
  things like database shutdown/startup for dumps

* Replaced $Conf{PingArgs} with $Conf{PingCmd}, added $Conf{DfCmd},
  $Conf{NmbLookupCmd} allowing all these commands to be fully
  configured.  Also, all commands (except smbclient) can also
  now be fragments of perl code.