updated parent pom

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk/maven-assembly-plugin@1585621 13f79535-47bb-0310-9956-ffa450edef68
[MASSEMBLY-696]
 - Patch applied of Kenny Westerhof


git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk/maven-assembly-plugin@1589280 13f79535-47bb-0310-9956-ffa450edef68