2.4.4:

* More gcc 3.4 build fixes. (Daniel Elstner)
* Gtk::StockItem: Use the global translation domain when no other 
  translation domain has been specified. (Daniel Elstner)
* Gtk::Action, ToggleAction, RadioAction, IconTheme: Constructors are now 
  protected so that you can derive from these classes.
* Gtk::Container: Avoid warning about unimplemented GtkContainer::remove 
  vfunc when deriving directly from Gtk::Container.
  (Murray Cumming)