added demo app to make signals/slots from new validationresultcollector work
added DomainValidator and DomainObjectValidator
added not null constraint and cleaned relational model creator and sql export
added LiteralDefaultClause
added constant default clause
added Executable
added return type
added Procedure
added trigger type
added Function
added TriggerFunction
added AuditTriggerFunction, VersioningTriggerFunction
added LogChangesTriggerFunction
added Trigger, BeforeTrigger, AfterTrigger
added trigger function to trigger
added events
added level