title: Cloudant filtered replication, removing documents from target
body: <p>I've got one db per user, from which I use a filtered replicate to send documents marked public into a single common database. I have this working. now when a user changes their document from public to private, the replications does not clear the document from the common database.</p>
  
  <p>Aside from reading all of the private documents from the userDb and then removing them from the common db (if they exist), is there anyway to accomplish this via fundamental replication features?</p>