changed kcaptcha configuration for following OpenPNE2 (fixes #172)
changed kcaptcha configuration for following OpenPNE2 (fixes #172)

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