Note about database considerations regarding Cordapp compatibility between OS and ENT.
Remove database configuration "schema" as this is not implemented in OS, it was already mentioned as ignored for SQL server.
* Instructions on how to perform H2 DB upgrades without starting the node.
* Formatting error. Adds required subsections in H2 docs.
* Merges duplicated information about H2 DB access.
* Drops script references for now.
* Clarifies upgrade notes.
* Better title.
* Inr
* Addresses review comments.
* Addresses review comments.
Set the "h2.allowedClasses" system property, require database password when exposing H2 server on non-localhost address, samples start H2 server by default (reintroduces the behaviour before h2Settings.address configuration option was added)
* 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
