DRILL-156 Union (all) pop implementation
Fixes to TestSimpleFilter
DRILL-169 Correct JSON serialization/deserialization for Project LOP
DRILL-171: Fix graph creation
DRILL-161 Add rebuffed jars for Hadoop2 protobuf conflicts
DRILL-176:  Updates to affinity calculator, fixes for parquet serialization.  Fix to ErrorHelper looping
DRILL-180: propagate exceptions back to client.
fail all whenever any query without queryId is received.
fix RunningFragmentManager and Foreman to include queryId when building results
@Ignore ConstantRopTest.testRefInterp() until plan is updated.
DRILL-166 Update CodeGenerator code to support more generic signatures.