Issue 3418: Multiple collections doesnt catch moderated status

Resolves issue: http://code.google.com/p/otwarchive/issues/detail?id=3418

Iterated through the list of collections that a work belongs to. Upon finding a collection that is moderated the extra 'flash' message is generated and we break ourselves out of the do-loop. We do this because we only want the message to show up once.