glade errors in message_window.glade, probably introduced in [9247]
(gajim:5319): libglade-WARNING **: unknown property `has_tooltip' for class `GtkImage'
(gajim:5319): libglade-WARNING **: unknown property `tooltip_markup' for class `GtkImage'
(gajim:5319): libglade-WARNING **: unknown property `tooltip_text' for class `GtkImage'