message: POM change to allow authentication to private registries through use of docker config.json
diff: <jacoco.version>0.7.6.201602180812</jacoco.version>
  <joda-time.version>2.7</joda-time.version>
  <joda-convert.version>1.8.1</joda-convert.version>
  + <docker.useConfigFile>false</docker.useConfigFile>
  </properties>
  <build>
  <artifactId>docker-maven-plugin</artifactId>
  <configuration>
  <skipDockerBuild>true</skipDockerBuild>
  + <useConfigFile>${docker.useConfigFile}</useConfigFile>
  </configuration>
  <executions>
  <execution>
  