po: update po/de/common-base.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/de/mailing.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/pt_BR/common-base.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/uk/common-base.po (pulled from Transifex.net by CiviCRM l10n maintainer)