SQOOP-1065: Sqoop2: Remove special lock object in FrameworkManager

(Jarek Jarcec Cecho via Venkat Ranganathan)
SQOOP-1088: Sqoop2: Submission history API

(Mengwei Ding via Jarek Jarcec Cecho)
SQOOP-1076: Sqoop2: Introduce Boolean model type

(Jarek Jarcec Cecho via Kate Ting)
SQOOP-943: Sqoop2: Repository wide configuration of immutable disk structures

(Jarek Jarcec Cecho via Kate Ting)