Build Scalable Slack Bot Apps with Rails + Relax, for more details, visit: https://blog.zerobotlabs.com/a-scalable-slack-bot-app-in-5-minutes-52e6afc68ace#.pjz4s0yo8
https://github.com/zerobotlabs/relax_on_rails
https://github.com/zerobotlabs/relax