handling maps in entities

Entity creation error message improvements

Entity creation should fail with a meaningful error

using guice AOP for graph transaction

BUG-36503 - Standardizing response on internal errors, client side errors

BUG-37910 hive hook defines its own hadoop version instead of using parents and can cause run time issues

BUG-37910 hive hook defines its own hadoop version instead of using parents and can cause run time issues

BUG-38021: add the superType check for loop expressions; also did some cleanup, moved the typeTest logic to GraphPersistenceStrategies

BUG-38021: add the superType check for loop expressions; also did some cleanup, moved the typeTest logic to GraphPersistenceStrategies

Merging from master to DAL

Removing double quoting of error Response