PIG-4334: PigProcessor does not set pig.datetime.default.tz (rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1640792 13f79535-47bb-0310-9956-ffa450edef68
PIG-4332: Remove redundant jars packaged into pig-withouthadoop.jar for hadoop 2 (rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1640793 13f79535-47bb-0310-9956-ffa450edef68
PIG-4333: Split BigData tests into multiple groups (rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1640794 13f79535-47bb-0310-9956-ffa450edef68