Merge pull request #507 from dokuwiki-translate/lang_update_19

inc/lang/hu/lang.php

lib/plugins/authad/lang/hu/settings.php

lib/plugins/authmysql/lang/hu/settings.php

lib/plugins/authpgsql/lang/hu/settings.php

lib/plugins/plugin/lang/hu/admin_plugin.txt

lib/plugins/plugin/lang/hu/lang.php

lib/plugins/revert/lang/hu/lang.php

lib/plugins/usermanager/lang/hu/import.txt

lib/plugins/usermanager/lang/hu/lang.php