Changes between 0.19.0 and 0.20.0

This is a minor release with a new experimental feature and dependency upgrades. It is compatible with 0.19.0. All users are encouraged to upgrade.

Add dynamic-batch publishing option (experimental)

GitHub PR: #649

GitHub issue: #645

<dependency>
  <groupId>com.rabbitmq</groupId>
  <artifactId>stream-client</artifactId>
  <version>0.20.0</version>
</dependency>

compile "com.rabbitmq:stream-client:0.20.0"