PIG-3859: auto local mode should not modify reducer configuration (aniket486)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1591129 13f79535-47bb-0310-9956-ffa450edef68
PIG-3672: Pig should not check for hardcoded file system implementations (rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1591297 13f79535-47bb-0310-9956-ffa450edef68
PIG-3860: Refactor PigStatusReporter and PigLogger for non-MR execution engine
(Fix typos: destory() -> destroy())


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1591406 13f79535-47bb-0310-9956-ffa450edef68
Merge latest trunk changes


git-svn-id: https://svn.apache.org/repos/asf/pig/branches/tez@1591449 13f79535-47bb-0310-9956-ffa450edef68