2.4.3:

* Win32: gdkmm: Link againsta the correct libpangomm library.
  (Cedric Gustin)
* Gtk::TreeModel::iterator: Correct the operator--() implementation, so that 
  it actually works. Remember, this is very slow compared to operator++().
  (Daniel Elstner)
* Gtk::ComboBoxText, Gtk::ComboBoxEntryText: Implement the constructors that 
  take C instances.
  (Murray Cumming)