PIG-2988: start deploying pigunit maven artifact part of Pig release process (njw45 via rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1452778 13f79535-47bb-0310-9956-ffa450edef68
PIG-3081: Pig progress stays at 0% for the first job in hadoop 23 (rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1452782 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'trunk' of https://github.com/apache/pig into trunk