4.9.5

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- Don't use deprecated g_mapped_file_free (bug #8649).
- Bump gtk, glib and xfce dependencies.
- Make launch button translatable.
- Translation updates: Catalan (Valencian), Danish, German, Greek,
  Basque, Finnish, French, Galician, Croatian, Italian, Japanese,
  Kazakh, Korean, Lithuanian, Dutch (Flemish), Norwegian Nynorsk,
  Polish, Portuguese, Portuguese (Brazilian), Russian, Slovak, Turkish,
  Ukrainian, Chinese (China).