PIG-3777: Pig 12.0 Documentation

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1571759 13f79535-47bb-0310-9956-ffa450edef68
PIG-3494: Several fixes for e2e tests - fix piggybank location in local mode (rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1571862 13f79535-47bb-0310-9956-ffa450edef68
PIG-3778: Log list of running jobs along with progress (rohini)

git-svn-id: https://svn.apache.org/repos/asf/pig/trunk@1571868 13f79535-47bb-0310-9956-ffa450edef68