Changelog

1. Converted to Typescript #40
2. Dockerize Wechaty for easy start #66
3. BREAKING CHANGE: global event scan listener arguments changed from 1 to 2: now is function(this: Sayable, url: string, code: number) instead of function({url, code}) before.
4. Sayablization: Make Wechaty/Contact/Room Sayable, and all this inside wechaty event listeners are Sayable too. #41
5. add test with Node.js v7.0 in CI
6. add npm run doctor to diagnose wechaty and output useful debug information

Known ISSUE

1. FriendRequest class can not be instanced by hand #70