SQOOP-1035: Add MS Sqoop Connecter tests

(Shuaishuai Nie via Jarek Jarcec Cecho)
SQOOP-1078: incremental import from database in direct mode

(Tim Howe via Jarek Jarcec Cecho)
SQOOP-934: JDBC Connection can timeout after import but before hive import

(Raghav Kumar Gautam via Jarek Jarcec Cecho)
SQOOP-1038: Add support for composite keys in HBase import

(Shruti Joshi via Jarek Jarcec Cecho)
Merge branch 'trunk' of https://github.com/apache/sqoop into SQOOP-999