SQOOP-1625: Repository upgrade issue

(Qian Xu via Jarek Jarcec Cecho)
SQOOP-1439: Sqoop2: Validations: Remove all references to the original Validation infastructure

(Jarek Jarcec Cecho via Abraham Elmahrek)
SQOOP-1629: Sqoop2: Add unique constraint on the Config table for name and type

(Veena Basavaraj via Abraham Elmahrek)