[cvsnt] Rename of a module

[Peter.Prokesch at wetzer.endress.com]

Hello,

We have a Module called "x" which we used since 1 year.
Now we have finished this project and want to keep the project data on our
cvs-server. The new project shall be named "x" again (in fact we used the wrong name
in the first go) so we have to rename the old project to "y".
What do we have to do not to loose all the information in the cvs system during the
move of our old sources?

Thanks a lot for your support!

Peter