po: update po/ca/admin.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/el/case.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/el/common-components.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/es/menu.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/hu/common-base.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/nl/common-base.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/nl/contribute.po (pulled from Transifex.net by CiviCRM l10n maintainer)