[gnome-chess] Hook up history_combo_changed_cb

[Michael Catanzaro <mcatanzaro src gnome org>]

commit f2ec084058bd75a48c91a0cada1230d0e73e3c7e
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun Aug 18 14:34:53 2013 -0500

    Hook up history_combo_changed_cb
    
    Looks like this got broken at some point
    
    https://bugzilla.gnome.org/show_bug.cgi?id=703860

 data/gnome-chess.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/data/gnome-chess.ui b/data/gnome-chess.ui
index 573f4df..b198f27 100644
--- a/data/gnome-chess.ui
+++ b/data/gnome-chess.ui
@@ -316,6 +316,7 @@
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="model">history_model</property>
+                    <signal name="changed" handler="history_combo_changed_cb" swapped="no"/>
                     <child>
                       <object class="GtkCellRendererText" id="history_combo_cellrenderer"/>
                       <attributes>