fixed sfOpenPNESecurityUser to check key of the MemberConfig (fixes #328)
fixed sfOpenPNESecurityUser to check key of the MemberConfig (fixes #328)

tejima/testravis,openpne/OpenPNE3,ShinichiU/OpenPNE3,C-nakajima/OpenPNE3,tejima/testravis,ShinichiU/AuthFramework,openpne/OpenPNE3,upsilon/travis-test,C-nakajima/OpenPNE3,ShinichiU/OpenPNE3,upsilon/travis-test,tejima/OP3PKG,isaosano/OpenPNE3,isaosano/OpenPNE3,ShinichiU/OpenPNE3,nise-nabe/ppcon-sns,ShinichiU/OpenPNE3,tejima/testravis,openpne/OpenPNE3,balibali/KakiageSNS,ShinichiU/AuthFramework,tejima/OP3PKG,balibali/KakiageSNS,isaosano/OpenPNE3,upsilon/OpenPNE3,C-nakajima/OpenPNE3,kashiwasan/symfony-advanced,nishizoe/OpenPNE3,nise-nabe/ppcon-sns,kashiwasan/symfony-advanced,ShinichiU/AuthFramework,isaosano/OpenPNE3,upsilon/OpenPNE3,ShinichiU/OpenPNE3_with_webInstaller,ShinichiU/OpenPNE3_with_webInstaller,openpne/OpenPNE3,C-nakajima/OpenPNE3,nishizoe/OpenPNE3