0.5.3 - Update copyright year - build: Bump dependency versions and fix deprecation warnings - I18n: Update po/LINGUAS list - I18n: Update po/LINGUAS list - build: Use XDT_VERSION_INIT and get rid of configure.ac.in - build: Switch from intltool to gettext - build: Fix intltool lock file problem during make distcheck - build: Add GLib requirement - build: Fix autotools warnings - autoconf: AM_CONFIG_HEADER -> AC_CONFIG_HEADERS - Update `.gitignore` - Translation Updates: Albanian, Arabic, Asturian, Basque, Belarusian, Bulgarian, Catalan, Chinese (China), Chinese (Taiwan), Croatian, Czech, Danish, Dutch, Eastern Armenian, English (Australia), English (Canada), English (United Kingdom), Estonian, Finnish, French, Galician, German, Greek, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Interlingue, Italian, Japanese, Korean, Kurdish, Latvian, Lithuanian, Malay, Norwegian Bokmål, Occitan (post 1500), Polish, Portuguese, Portuguese (Brazil), Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Ukrainian, Urdu, Urdu (Pakistan), Uyghur