SQOOP-1759: TestIncrementalImport fails with NPE on Windows

(Venkat Ranganathan via Jarek Jarcec Cecho)
SQOOP-1567: Auto-Configure JTDS Driver From JDBCUrl

(Nick White via Jarek Jarcec Cecho)
SQOOP-1125: Out of memory errors when number of records to import < 0.5 * splitSize

(Sai Karthik Ganguru via Jarek Jarcec Cecho)