[Koha-translate] Update on MARC21 frameworks

Hi, there are small changes on MARC21 frameworks, see Bug 24312 [1] Translation strings have been updated on https://translate.koha-community.org/projects/marc21/ Also SQL files on https://translate.koha-community.org/files/ reflect changes up to Update 29 Remember that this files are updated every day. Best Regards Bernardo [1] https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=24312 -- Bernardo Gonzalez Kriegel bgkriegel@gmail.com