po: update po/pt_BR/admin.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/pt_BR/contribute.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/pt_BR/menu.po (pulled from Transifex.net by CiviCRM l10n maintainer)