v0.2.0

• Users can now vote on ideas
• Single tenant mode for easier self-hosted solution
• Many other enhancement: https://github.com/WeCanHearYou/wechy/milestone/1

As always, demo environment is available at http://demo.canhearyou.com/
Docker image version 0.2.0 is also available at https://hub.docker.com/r/wecanhearyou/wechy/tags/