PIG-3860: Refactor PigStatusReporter and PigLogger for non-MR execution engine
(Remove tez-related code from TaskContext in hadoop23 shum. It was committed
accidentally.)


git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1590829 13f79535-47bb-0310-9956-ffa450edef68