new option: 'HELPDESK_FOOTER_SHOW_CHANGE_LANGUAGE_LINK'

If activated, a 'change language' link will be shown in the footer.
You need to add this line to your 'urlpatterns' variable in your
urls.py file:

(r'^i18n/', include('django.conf.urls.i18n'))

helpdesk/urls.py

@@ -134,6 +134,10 @@ urlpatterns += patterns('helpdesk.views.public',
     url(r'^view/$',
         'view_ticket',
         name='helpdesk_public_view'),
+
+    url(r'^change_language/$',
+        'change_language',
+        name='helpdesk_public_change_language'),        
 )
 
 urlpatterns += patterns('',