use configure in MDFinder subproject

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/apps/gworkspace/trunk@36411 72102866-910b-0410-8b05-ffd578937521
use configure in Preferencessubproject

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/apps/gworkspace/trunk@36412 72102866-910b-0410-8b05-ffd578937521
use configure in Preferences subproject

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/apps/gworkspace/trunk@36413 72102866-910b-0410-8b05-ffd578937521
use configure in MDFinder subproject

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/apps/gworkspace/trunk@36414 72102866-910b-0410-8b05-ffd578937521