d-i debcamp: Make sure the local organizer know you are coming

[Petter Reinholdtsen <pere@hungry.com>]

If you are coming to the d-i debcamp in oldenburg, please make sure
your name is listed on
<URL:http://oldenburger.linuxtage.de/Oldenburg2003/attendees.php3>.
If not, email joey as described on
<URL:http://oldenburger.linuxtage.de/Oldenburg2003/>.