Log Message:
libxfce4util: update to 4.13.2:

- Add VAPIGEN for vala binding generation.
- Fix make distcheck build
- Better documentation processing (migrate away from sgml templates)
- Allow language-specific keys before language-neutral ones (some applications \ 
names were not
  localized in applications menu) (bug #13979)
- Translation updates: Arabic, Asturian, Bulgarian, Bengali, Catalan, Czech, \ 
Welsh, Danish, German,
  Greek, English (Australia), English (United Kingdom), Spanish, Estonian, \ 
Basque, Finnish,
  French, Galician, Hebrew, Croatian, Hungarian, Indonesian, Icelandic, Italian, \ 
Japanese, Kazakh,
  Korean, Lithuanian, Latvian, Malay, Norwegian Bokmål, Dutch, Norwegian Nynorsk,
  Occitan (post 1500), Panjabi (Punjabi), Polish, Portuguese, Portuguese \ 
(Brazil), Romanian, Russian,
  Sinhala, Slovak, Albanian, Serbian, Swedish, Thai, Turkish, Uighur, Ukrainian, \ 
Urdu, Urdu
  (Pakistan), Uzbek, Chinese (China), Chinese (Hong Kong), Chinese (Taiwan)