SQLCoverage tests for subquery with resulting patches and junit cases.
missing sqlcoverage additions
Merge branch 'master' into ENG-6090-subquery-test-and-fix
More/better sqlcoverage test patterns -- disable bad optimizations for subquery cases.
Merge branch 'ENG-6090-subquery-test-and-fix' of github.com:VoltDB/voltdb into ENG-6090-subquery-test-and-fix
Added search rules for finding license.xml. If license file is not
explicitly specified, the Server will look for 'license.xml' in the
working directory, followed by the directory of the jar file containing
the class VoltDB followed by the home directory.

If the file is found, a info message will be sent to the log indicating
the location where a working license file was found.
Change log from warning to info when default license file is found.
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.
ENG-6075 clone table elastic state post-truncate
ENG-6075 oops I committed a scratch file
Hsql has wrong answers bug, which leads me to a wrong direction at the first time
ENG-6075 Make CopyOnWriteTest compile.
ENG-6075 Completely reverting the TRUNCATE TABLE support changes to ElasticIndexReadContext re:nshi
Merge remote-tracking branch 'origin/master' into ENG-5392-ChangeLicenseSearchPath
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
Merge pull request #1276 from VoltDB/ENG-6075-elastic-truncate

Eng 6075 elastic truncate r=nshi
Merge pull request #1262 from VoltDB/ENG-6090-subquery-test-and-fix

Eng 6090 subquery test and fix r=xjia