JCR-4128: update maven plugins and require Maven 3.2.1
JCR-4128: update maven plugins and require Maven 3.2.1

maven-assembly-plugin

git-svn-id: 02b679d096242155780e1604e997947d154ee04a@1792113 13f79535-47bb-0310-9956-ffa450edef68

apache/jackrabbit,apache/jackrabbit,apache/jackrabbit