v0.4.3

Features

• Add the output of the number of rows imported after successfully importing data (#1401 @Manny-op)
• Code Refactoring (#1366 @Cupid0320; #1378 @wuteek; #1418 @prashantpaidi; #1420 @shiyoubun; #1422 @vagetablechicken)

Bug Fixes

• Loading online data with "not null" columns in Spark fails. (#1341 @vagetablechicken)
• max_where and min_where results are incorrect if there is no rows matched. (#1403 @aceforeverd)
• The insert and select execution of the standalone version fails. (#1426 @dl239)
• Other minor bug fixes (#1379 @wuteek; #1384 @jasleon)