v0.04

Changes

• ksqlDB details (server, user, pw) now a client object, much tidier. Thanks @Frosin (#11)
• Logging handled better, thanks @Frosin (#11)
• Uses contexts now to properly manage cancelling queries (thanks @blaketastic2)
• Added support for authentication - tested successfully against Confluent Cloud (#7)

What's next

Check out the issue list and feel free to contribute :)