code: public void savePage(WizardView view, Runnable successCallback, Runnable failureCallback) {
  		if (null != successCallback) {
  			successCallback.run();
  		}
  	}
docs: Save the page data. This can communicate with the server if needed. The return is handled by calling either the
  success or failure callback.
  
  @param view wizard view
  @param successCallback what to do on success
  @param failureCallback what to do on failure