PIG-4086: Fix Orc e2e tests for tez

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1615825 13f79535-47bb-0310-9956-ffa450edef68
PIG-4008: Pig code change to enable Tez Local mode

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1615826 13f79535-47bb-0310-9956-ffa450edef68