Removes the <groupId> field from the POM since it's not needed.
Removes the <groupId> field from the POM since it's not needed.

The plugin's groupId field will default to org.jenkins-ci.plugins, which is the
correct value for hosted plugins. See the docs for more information.

https://wiki.jenkins-ci.org/display/JENKINS/Hosting+Plugins

jenkinsci/mber-plugin,jenkinsci/mber-plugin