Library now requires tiff and DPSclient libraries.
Remove a number of functions which should be implemented in backend.
Correct many method definitions that should use NSNotification.
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@1762 72102866-910b-0410-8b05-ffd578937521
Add global variable to NSApplication to prevent -release loops when
it is being dealloced.
Remove debugging information.
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@1634 72102866-910b-0410-8b05-ffd578937521