code: protected IModel<String> newDescription()
  	{
  		return ResourceModelFactory.newResourceModel(
  			ResourceBundleKey.builder().key("page.meta.description").defaultValue("").build(),
  			this);
  	}
docs: Factory method that can be overwritten for new meta tag content for description.
  
  @return the new <code>{@link IModel}</code> for the meta tag content for description.