po: update po/el/common-components.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/el/member.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/el/pledge.po (pulled from Transifex.net by CiviCRM l10n maintainer)
po: update po/es/contribute.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)