2.3.17:

* Save As:
  - Still offer the existing directory, but not the existing 
    file, because it's not a good default.
  - Warn and ask again if the chose file is read-only, or the 
    directory is read-only, though I think GtkFileChooser 
    should do this.
* New translations:
  - Vietnamese (Clytie Siddall)
  - Finnish (Ilkka Tuohela)
* Updated translations:
  - Brazilian Portuguese (Raphael Higino)