2.1.0-b17

Docker tag: pharndt/mielemqtt:2.1.0-b17

Changes in this Release

• Add support for will message
• Dependency update
• Use test dependencies from:

<dependency>
    <groupId>de.rnd7.mqttgateway</groupId>
    <artifactId>test</artifactId>
    <version>2.1.0-b22</version>
    <scope>test</scope>
</dependency>