==========================
plone.app.discussion to-do
==========================

 [ ] Thread building in conversation.getThreads()
 [ ] Batching in conversation.getComments()

 [ ] ++comments++ namespace traversal adapter

 [ ] Implement plone.indexer indexers for comments, filling standard metadata
    
    - Note discrepancy between Python datetime and indexing expecting a Zope 2
        DateTime field

 [ ] Implement plone.indexer indexers for commented-upon content
 
    - Unique set of commentators 
    - Number of comments
    - Date/time of most recent comment
    
    These have to be reindexed when comment is added/removed 
    (IContainerModifiedEvent). They also need to be set up in catalog.xml.
 
 [ ] Add tests for conversation dict API
 [ ] Add tests for IReplies adapters

 [ ] Add UI
 
    - comment display should be a viewlet overriding the standard comments
        viewlet
        
    - comment forms should use z3c.form subforms and plone.z3cform's
        ExtensibleForm support
 
 [ ] Add control panel
 
    - install plone.registry records using registry.xml
    - create control panel using helper class in plone.app.registry
 
 [ ] Make sure a catalog Clear & Rebuild doesn't lose all comments

 [ ] Add BBB support for the existing portal_discussion interface
    
    - implement in BBB package
    - mix into tool.CommentingTool
    - emit deprecation warnings