2006-04-26  Brian Cameron  <brian.cameron@sun.com>

        Adding per-display configuration support to GDM.  Now if user has
        a file named /etc/gdm/custom.conf:<displaynum>, the settings in this
        file will override the /usr/share/gdm/defaults.conf and
        /etc/X11/gdm/custom.conf settings.  Only keys that affect the GUI
        behavior are supported.  These include those in the "gui" and
        "greeter" sections and the security/PamStack key.

        * daemon/gdm.c: Update GET_CONFIG command so it accepts a display
          argument.  It is backwards compatible and will return the per-display
          setting if this is passed in, or the non-display value if not
          passed in.  Fix bug that caused PreFetch key to not just return
          the once as it is supposed to.
        * daemon/gdmconfig.[ch], jui/gdmconfig.c: Updated to support
          per-display configuration.
        * daemon/gdm.h: Updated documentation for new command.  Corrected some
          errors.
        * daemon/verify-pam.c, daemon/gdmconfig.c config/gdm.conf.in: Add
          security/PamStack configuration variable as a per-display setting.
          This allows the sysadmin to specify a different PAM stack, if desired
          and also allows customization per display.  Also added key info for
          some BackgroundProgram keys that were missing.
        * config/PreSession.in: now requests configuration data per-display.
          Will use normal configuration if no per-display config files.
        * gui/.cvsignore: Add gdmsetup.desktop.in
        * gui/gdmdynamic.: Improve usage warning.
        * gui/gdmlogin.c: Add some debug
        * docs/C/gdm.xml: Updated docs to reflect new per-display config.