added ability to check site_identifier in session data when OpenPNE handles sessions (refs #1693)
added ability to check site_identifier in session data when OpenPNE handles sessions (refs #1693)

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