Add method to return class names of entities which have been created.
Add method to return class names of entities which have been created.

articque/doctrine2-spatial,ddproxy/doctrine2-spatial,djlambert/doctrine2-spatial-dev,honestbuildings/doctrine2-spatial,muka/doctrine2-spatial,amenadiel/doctrine2-spatial,holtkamp/doctrine2-spatial,djlambert/doctrine2-spatial,creof/doctrine2-spatial,dragosprotung/doctrine2-spatial