Fix warnings about not implemented protocols.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/apps/gworkspace/trunk@36253 72102866-910b-0410-8b05-ffd578937521
Fix warnings about not implemented protocols.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/apps/gworkspace/trunk@36254 72102866-910b-0410-8b05-ffd578937521
NSUInteger and NSInteger transition

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/apps/gworkspace/trunk@36255 72102866-910b-0410-8b05-ffd578937521