mtr v0.74

mtr v0.74

 - Martin Pels' patch to allow UDP probes.
 - KES reported a build problem. Turns out I need to install gtk-1.2
   on my development sytem, otherwise my release script causes the
   build to break.
 - changed some docs to advertise the new mailing list.  added
   documentation for the Mac OS X compilation problem.  added
   -Wno-pointer-sign to the compiler options.
 - Nico Lichtmaier's cleanup-gtk patch. (now mtr uses a more modern
   dialect of gtk).

source: ftp://ftp.bitwizard.nl/mtr/mtr-0.74.tar.gz