This splits the modpython, modperl and modtcl specific parts of
modules/Makefile.in into separate files. There shouldn't be any other changes
than this in here (hopefully).
git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@2209 726aef4b-f618-498e-8847-2d620e286838