Add alias for since_epoch and to_timestamp functions: millisecond and microsecond
Remove unused func tokens if not needed
ENG-4825: First crack at refactoring parameterConverter to work right.
ENG-4825: Fix broken tests. Tweak parameter conversion.
Fixed one conversion bug and changed some null handling code.
Fixed 3 whacko tests.
ENG-4825: Fix test that made bad choices but doesn't have to live with them.
ENG-4834: Fix MP restart with sync command log run out of order.

With synchronous command logging, a restarted MP txn could be offered to the
transaction task queue before the original first fragment was marked
durable. As a consequence, The original first fragment could be executed after
the restarted MP txn. This led to MP deadlocks and fragments being run twice.
ENG-4834: Change queue add to offer for better readability.
ENG-4825: Take pmartel feedback and mass-rename variables.
ENG-4285: more pmartel feedback
some improved plannertester baselines
ENG-4825: Last pmartel feedback makes a test a bit stronger.
Merge pull request #580 from VoltDB/ENG-4825-params

ENG-4825: First crack at refactoring parameterConverter to work right.
Merge pull request #575 from VoltDB/ENG-4697-to-timestamp

Add alias for since_epoch and to_timestamp functions: millisecond and mi...
Merge pull request #582 from VoltDB/mprestart

ENG-4834: Fix MP restart with synchronous command logging out of order issue
Merge branch 'master' into elastic