Fix exit condition

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/apps/gworkspace/trunk@36174 72102866-910b-0410-8b05-ffd578937521
Update drag operation type

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/apps/gworkspace/trunk@36175 72102866-910b-0410-8b05-ffd578937521