message: List updates in changelog
diff: [Want to contribute? Read our guide!](https://github.com/howdyai/botkit/blob/master/CONTRIBUTING.md)
  +# 0.6.19
  +
  +No new features, but updates throughout the dependency tree for security and stability purposes.
  +
  +* Updated dependency versions to latest available
  +
  +* Rewrote Botkit command line tool to remove dependency on abandoned library. Upgrade to the latest: `npm install -g botkit`
  +
  +* Switched from using jscs to eslint for linting purposes.
  +
  # 0.6.18
  * Fix syntax error in Web connector. Oops! Thanks for reporting this issue @iworkforthem!
  