[tali] Use a header bar on the preferences dialog

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 0a8032c7c4e3d0a8cddb9d3dbc860d2837a3837d
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun May 11 18:49:02 2014 -0500

    Use a header bar on the preferences dialog

 src/setup.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/src/setup.c b/src/setup.c
index a95e146..c06ec59 100644
--- a/src/setup.c
+++ b/src/setup.c
@@ -261,11 +261,9 @@ setup_game (void)
     return;
   }
 
-  setupdialog = gtk_dialog_new_with_buttons (_("Tali Preferences"),
+  setupdialog = gtk_dialog_new_with_buttons (_("Preferences"),
                                             GTK_WINDOW (window),
-                                            GTK_DIALOG_DESTROY_WITH_PARENT,
-                                            GTK_STOCK_CLOSE,
-                                            GTK_RESPONSE_CLOSE, NULL);
+                                            GTK_DIALOG_USE_HEADER_BAR, NULL);
   gtk_box_set_spacing (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (setupdialog))), 2);
   gtk_window_set_resizable (GTK_WINDOW (setupdialog), FALSE);
   g_signal_connect (G_OBJECT (setupdialog), "delete_event",