Add directory-only support to Fl_FileBrowser. Update button and menu drawing code for check and radio buttons. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@1582 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@1529 ea41ed52-d2ee-0310-a9c1-e6b18d33e121