DRILL-414: Update root pom.xml so that mapr dependency excludes commons-logging.
DRILL-326: Fixes for merge join allocations
DRILL-346: Move constant expressions to setup.
DRILL-413: Parse issue in QuerySubmitter
DRILL-406: Move JSON integer range to use BigInt instead of Int
DRILL-417: Bug fixes in repeated vector offsets
Drill-418: Fixes for Parquet nullable reader bug.
Join rel > logical conversion fixes
Drill-379: support part of string and math functions
fix drill trace to point to /tmp so that Travis doesn't fail.
Update join test to use in tree paths.