DRILL-1600: Enable Java assertion in unit tests
DRILL-1604: Include error info in message sent back to client
DRILL-1617: Disable ProducerConsumer
DRILL-1581: Fix overflow check in casting from varchar to int
DRILL-1601: Have a minimum allocation for variable length value vectors.
Improve error messages in PartitionerTemplate and UnorderedRawBatchBuffer.
Minor change in cleanup for HashJoin.
DRILL-1566: C++ Client does not handle incoming record batches with zero records
DRILL-1417: ensure star column is passed to scan in case non-partition columns are empty
DRILL-1539: fix an issue regarding populateEmpties in RepeatedMapVector