xfce4-garcon: update to 0.6.2:

- Fix some menu icons are too big (Bug #13785)
- Support composite XDG_CURRENT_DESKTOP (#14137)
- Decrement allocation counter on item unref (#12700)
- Replace hash table for application actions with a list
- Support for freedesktop Keyword item (#10683)
- garcon-gtk2-1.pc should be optional.
- Fix documentation generation
- Fix make distcheck build
- Fix some autogen warnings
- Update dependencies and copyright
- Translation Updates: Amharic, Arabic, Asturian, Belarusian,
  Bulgarian, Catalan, Czech, Danish, German, Greek, English (Australia),
  English (United Kingdom), Esperanto, Spanish, Estonian, Basque,
  Finnish, French, Galician, Hebrew, Hindi, Croatian, Hungarian,
  Indonesian, Icelandic, Italian, Japanese, Kazakh, Korean,
  Lithuanian, Malay, Norwegian Bokm奪l, Dutch, Norwegian Nynorsk,
  Occitan (post 1500), Polish, Portuguese, Portuguese (Brazil),
  Romanian, Russian, Slovak, Slovenian, Albanian, Serbian, Swedish,
  Telugu, Thai, Turkish, Uighur, Ukrainian, Uzbek, Uzbek (Latin),
  Chinese (China), Chinese (Hong Kong), Chinese (Taiwan)

(youri)