iso_639: Turkish by Volkan Gezer from TP
iso_3166_2: Polish by Jakub Bogusz from TP
iso_15924: Dutch by Freek de Kruijf from TP
iso_639_5: Dutch by Freek de Kruijf from TP
iso_15924: Danish by Joe Hansen from TP
ISO 3166-2: Japanese by victory.deb@gmail.com. Closes: #746533
Add sr@latin.po to repository
Regenerate autotools files
Prepare release 3.54
Refresh .po files