Examle windows shouldn't have a menubar set.
Merge pull request #63 from vidalvanbergen/master

Example windows shouldn't have a menubar set or the app might crash after the window gets closed.
adjusted the "isFullscreen" methods.
Removed unused 'Unused' pragma's, aaah, the ease of copy/paste should not be misused.
This seemed to cause a crash under carbon if i tried to click on a menubar menu.
Merge pull request #64 from vidalvanbergen/master

Cleaned IsFullscreen items.
Merge pull request #36 from macoslib/master

Merge changes