HADOOP-10313. Script and jenkins job to produce Hadoop release artifacts. (tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1563044 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5856. Merge 1563064 from trunk.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1563065 13f79535-47bb-0310-9956-ffa450edef68