code: private DajlabModel getModel() {
  
  		DajlabModel model = new DajlabModel();
  		for (DajlabControllerExtensionInterface<DajlabModelInterface> controller : controllers) {
  			DajlabModelInterface subModel = controller.getModel();
  			model.put(subModel);
  		}
  		return model;
  	}
docs: Create an instance of {@link DajlabModel} containing all models from
  controllers.
  
  @return a DajlabModel instance