OpenJDK 11 support
A lot of small changes:
- OpenJDK 11 support
- Multistage Docker build
- jlink for custom JDK distribution
- Kinesis Data Stream HTTP/2 for faster streaming (for Lambda functions)
- Redis 5 (still pub/sub, waiting for Redis Streams support for Vert.x)
- Latest Vert.x version
- Better dependecy management (Maven)
- Fixed Makefiles for Lambda functions
- A few bugfixes