enable json API by default. (sns_config.yml) (fixes #2954,BP from #2889)
enable json API by default. (sns_config.yml) (fixes #2954,BP from #2889)

nise-nabe/ppcon-sns,openpne/OpenPNE3,tejima/OP3PKG,openpne/OpenPNE3,openpne/OpenPNE3,nise-nabe/ppcon-sns,openpne/OpenPNE3,tejima/OP3PKG