New packages for testing: Nagios, PNP, NDOutils

I've just removed the "UNTESTED" from 3 directories on http://people.teamix.net/~svelt/debian/etch/:

Watch out for new features in PNP as Jörg presented a pre-0.4 version at the Nagios Workshop in Karlsruhe (german).

Please send me some feedback if you use/test these packages! Thanks!