BUG RelayState not used in auth response

https://groups.google.com/forum/#!searchin/simplesamlphp/SimpleSAML_Error_Assertion$3A$20Assertion$20failed$3A$20$27is_string%28$24url%29$27/simplesamlphp/drIDjOlCKlY/u0SEHpnFt0wJ
BUG SAML2 LogoutRequest/Response should send & verify Destination attribute when signed

https://groups.google.com/forum/#!searchin/simplesamlphp/logoutresponse/simplesamlphp/PtDS18cEFUI/Sh69pr1MWSEJ