fix DBCleaner for Derby
improve DBCleaner without filtering
improve DBCleaner with filtering
fix procedure names
CAY-1970 Minor Improvements to EJBQL Coverage in "Cayenne Guide"
CAY-1959 Chainable API for SelectQuery

* changing 'exp' to 'where' per discusion on dev
CAY-1959 ObjectSelect query - a fluent API alternative to SelectQuery

* renamed the jira to draw attention to the new ObjectSelect query