2006-10-30  Brian Cameron  <brian.cameron@sun.com>

        * gui/greeter/greeter.c, gui/greeter/greeter_item_ulist.[ch],
          gui/greeter_item_pam.c:  Similar usability fixes for gdmgreeter.
          OK/Cancel buttons are now sensitive/insensitive (but only if
          using GTK style buttons), and the userlist now is not shown
          if there are no users.  Added a new item id "userlist-rect"
          which can be used to specify the rectangle containing the
          userlist, so it can also disappear when the userlist is
          empty.
        * gui/greeter/themes/happygnome-list/happygnome.xml:  Now use
          "userlist-rect" so the alpha rectangle goes away when the
          list is empty.
        * docs/C/gdm.xml: Add information about userlist-rect id.