Log Message:
Update to 2.8.1:

- Documentation update
- File/directory chooser fix
- Removed quit from menu for consistency
- Recent files update
- More statusbar information
- Improved slideshow navigation
- Translation Updates:
  Abel Cheung (zh_TW, mk, de), Akagic Amila (bs), Alessio
  Frusciante (it), Arafat Medini (ar), Changwoo Ryu (ko),
  Danilo Å egan (sr), Jens Finke (cs), Jesus Bravo Alvarez (gl),
  Nikos Charonitakis (el), Paisa Seeluangsawat (th),
  Stanislav Visnovsky (sk)