* MSSQL support
* changes per reviewer's comments; doc
* clean up
* CONTRIBUTORS.md
* minor change in comment
* another minor change in comment
* minor formatting
* Comments formatting per recommend style; contributors in alphabet order
* more comment formatting per coding style
* Change MSSQL to SQLServer in codes and comments
* Change MSSQL to SQLServer in doc
* Use generateSequence to build repeats of ?,?,...?
* Introduce new h2Settings config block which overrides h2Port
* H2 server listens on localhost by default
* Change is backward compatible and old h2Port option can still be used but that always listens on localhost now
* Update changelog and docs with H2 changes