2.21.91
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Misc

  - Require gtk-doc 1.9 (Vincent) [#511414]

 Translators

  - Djihed Afifi (ar)
  - Takeshi AIHANA (ja)
  - Arangel Angov (mk)
  - sandeep shedmake (mr)
  - Tomasz Dominikowski (pl)
  - Duarte Loreto (pt)
  - Pavol Šimo (sk)
  - Theppitak Karoonboonyanan (th)