MacOSX packages using PackageMaker
 - renamed support-files/PKG -> support-files/SCO (PKG is used in MacOS X
   terminology as well)


support-files/SCO/INSTALL.sh:
  mvdir
support-files/SCO/compile.sh:
  mvdir
support-files/SCO/doc.sh:
  mvdir
support-files/SCO/mkpkg.sh:
  mvdir
support-files/SCO/patch:
  mvdir
support-files/SCO/pkginfo.ini:
  mvdir
support-files/SCO/postinstall:
  mvdir
support-files/SCO/preinstall:
  mvdir
support-files/SCO/preremove:
  mvdir
support-files/SCO/prototype.ini:
  mvdir
support-files/SCO/version:
  mvdir
support-files/MacOSX/make_mysql_pkg.pl:
  Rename: support-files/make_mysql_pkg.pl -> support-files/MacOSX/make_mysql_pkg.pl
configure.in:
   - added support-files/MacOSX
support-files/Makefile.am:
   - added MacOSX subdirectory