SENTRY-131: bin/sentry script doesn't find config-tool.sh under some circumstances (Mark Grover via Prasad Mujumdar)
SENTRY-133: Alter table create partition if not exists - results in error (Brock Noland via Jarek Jarcec Cecho)
SENTRY-136 - Thrift request structs should include the groupName in addition to the userName (Shreepadma via Brock)
Merge master into db_policy_store branch