ENG-6113 Wrong answer repro in TestPlansJoin and hsql patch for it.
Fix the test cases. It seems working
Add sql coverage tests for outer join null padding tests. Fix the planner tests.
Hsql has wrong answers bug, which leads me to a wrong direction at the first time
Turn off the verbose junit output message
Merge pull request #1274 from VoltDB/ENG-6113-left_outer_join_wrong_answer

Eng 6113 left outer join wrong answer