Add support for recording CVS revision numbers as props.
Add support for recording CVS revision numbers as props.

* tools/cvs2svn/cvs2svn.py
  (Dumper.add_or_change_path): Add a new 'cvs2svn:cvs-rev' property on
    all files.
  (Commit.commit): Pass the value of ctx.cvs_revnums to
    dumper.add_or_change_path().
  (usage, main): Support new --cvs-revnums option.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion