* stop using aclocal.m4 and directly sinclude() the .m4 files into the

* stop using aclocal.m4 and directly sinclude() the .m4 files into the
  configure script. don't "clean" it and remove it from .cvsignore.
  Note: to avoid problems in developer dirs, we nuke the file in
  buildconf.sh for now; we'll stop doing that at some future time.
  [idea from ASF]

* look for glibtoolize, in addition to libtoolize (e.g. the MacOS X platform
  names it differently). [patch from ASF]

* conftools/missing is not needed

* use "exit 0" in buildconf.sh to help calling scripts. [patch from ASF]

* minor output cleanup in "make clean"