WL-123 Use existing notification view/model for auto-enrollment

@chrisndodge @afzalwali Kindly review the changes for WL-123. I have used the exiting notification view/model for auto-enrollment.

Thanks
This looks much better. I would just recommend that you create a new NotificationModel inside of render_response instead of reusing the same one each time. If there are two different sets of messages being shown, I'm not sure if changing the model out from under the first view will cause that view to re-render. Having a new model instance for each view makes more sense.