fixed openpne:install that causes notice because of fixtures of the upgrading directory (refs #237)
fixed openpne:install that causes notice because of fixtures of the upgrading directory (refs #237)

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