OneLogin's SAML PHP Toolkit v3.2.0

• Add support for Subjects on AuthNRequests by the new parameter nameIdValueReq
• Support SLO ResponseLocation
• #344 Raise errors on IdPMetadataParser::parseRemoteXML and IdPMetadataParser::parseFileXML
• #356 Support 'x509cert' and 'privateKey' on signMetadata security setting