Avoid triggering an X error when the client->manager_window is

Avoid triggering an X error when the client->manager_window is

Tue Feb 10 12:02:14 2004  Owen Taylor  <otaylor@redhat.com>

        * gdk/x11/xsettings-client.c (read_settings): Avoid
        triggering an X error when the client->manager_window
        is None...makes logs look cleaner.

        * gdk/x11/gdkproperty-x11.c (gdk_property_get): Handle
        GDK_NONE to mean AnyPropertyType as documented. (Reported
        by Yu Shao)

        * gdk/x11/gdkevents-x11.c (fetch_net_wm_check_window,
        gdk_x11_screen_get_window_manager_name): Fix error trap
        we've been leaking since 2002... (#129538)