Use the new macros from the last commit in all files

...and gone are the annoying warnings.

plug-ins/script-fu/script-fu-server.c

@@ -836,7 +836,7 @@ server_interface (void)
 
                          NULL);
 
-  gtk_dialog_set_alternative_button_order (GTK_DIALOG (dlg),
+  gimp_dialog_set_alternative_button_order (GTK_DIALOG (dlg),
                                            GTK_RESPONSE_OK,
                                            GTK_RESPONSE_CANCEL,
                                            -1);