gtk: Always load the atk-bridge

Slightly modified by Alejandro Piñeiro

https://bugzilla.gnome.org/show_bug.cgi?id=677491

gtk/a11y/gail.c

@@ -33,6 +33,7 @@
 #include "gailutil.h"
 #include "gailmisc.h"
 
+#include <atk-bridge.h>
 
 static gboolean gail_focus_watcher      (GSignalInvocationHint *ihint,
                                          guint                  n_param_values,
@@ -806,6 +807,7 @@ _gtk_accessibility_init (void)
   focus_tracker_id = atk_add_focus_tracker (gail_focus_tracker);
 
   _gail_util_install ();
+  atk_bridge_adaptor_init (NULL, NULL);
 
   atk_misc_instance = g_object_new (GAIL_TYPE_MISC, NULL);
 }