* trigger based history will recreate view properly and handle default value also for history view
* HistoryTriggers are generated at the end
* Reference Script
* MYSQL: lock all tables at once
* NEW: Ebean reads version from pop.properties and prints it at start up
* DDL generation and migration can append a header and platformMigration is prepared to append epilog & prolog to scripts
* FIX: Set identity only, if it is not the platform default type
* Updated reference scripts
* ADD basic support for foreign key migration
* DbMigration detects alter foreign keys
* tests