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THINGS THAT NEED TO BE DOCUMENTED
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- Discussion Control Panel: Some discussion related settings are not located
  in the discussion control panel.

- Monkey Patch: BAD_TYPES list is monkey patched to remove the
  "Discussion Item" content type. This is needed to show comments in search
  results.

- "As an administrator, I can configure commenting workflow": Controls are
  located in the Types Control Panel.

- Allow comments per content type / single content object / folder.

- How to enable and use the moderation workflow.

- How to extend the comment form with a custom field.

- How to set the maximum indent.