Set up the maven-release-plugin
Fix pom.xml indentation
Stop integration tests to run by default

See https://bugs.eclipse.org/bugs/show_bug.cgi?id=405631
Backport maven-release-plugin config from parent
Enable jetty for integration tests
Enable autoVersionSubmodules
Always provide jetty-plugin
Remove suppressCommitBeforeTag
Prepare indentation for release-plugin
Set tag to HEAD in SCM