I want the worldoutline to be able to display a Twitter conversation.
Tweets are nodes with type == "tweet" and an id attribute.
Tweets can contain tweets subordinate to them, reflecting the reply structure.
This is why something needs to change in op.render.viewoutline, because the existence of a type attribute causes the outlining to stop and it to link to the item. it assumes the onlly reason something has a type is that it's a document. but tweets are not documents, they fit into the outline structure.
Made changes to op.render.viewOutline, see the comment at the head of the routine. Here's an example.