publish array of Elements

[Vinh Nguyen \(vinguye2\)]

Currently, NotificationProducer.publish() sends out a single Element.
Out of curiousity, would it make sense to enhance it to publish an array
of Elements?  A workaround is to wrap the array in a parent Element, and
publish the parent.  But I'm trying to see if anyone else has a reason
to publish an array of elements.