[MNG-612] Merged MNG-612 maven-artifact branch from 2.0.x: https://svn.apache.org/repos/asf/maven/components/branches/MNG-612/maven-artifact/ git-svn-id: https://svn.apache.org/repos/asf/maven/artifact/branches/MNG-612@572705 13f79535-47bb-0310-9956-ffa450edef68