Initialize window title with bundle name, OLPC #11037

I had to modify the patch slightly because of
0269f819761cfd803cf4d694298c8ab6a753e242, changes
reviewed by Sascha.

Signed-off-by: Gonzalo Odiard <gonzalo@laptop.org>
Acked-By: Simon Schampijer <simon@laptop.org>
Reviewed-by: Sascha Silbe <silbe@activitycentral.com>

src/sugar/activity/activity.py

@@ -335,6 +335,10 @@ class Activity(Window, gtk.Container):
                                                   warn_if_none=False)
             self._set_up_sharing(mesh_instance, share_scope)
 
+        if not create_jobject:
+            self.set_title(get_bundle_name())
+            return
+
         if self.shared_activity is not None:
             self._jobject.metadata['title'] = self.shared_activity.props.name
             self._jobject.metadata['icon-color'] = \