Thu Apr 23 00:32:49 1998  George Lebl  <jirka@5z.com>

        * drawer.c: raise on enter_notify on button, and
          center drawers

        * panel-widget.[ch]:added a frame inside the table
          to make the whole thing look more 3D-ish, also use
          hidebutton widgets for drawers as it saves some
          headaches and simplifies the code quite a lot