Retrieves OPML entries, 3 items per feed, [source] prepended to title, filter dups, sort most recent first, truncate to the first 20. 3 items per feed prevents the most active sources from dominating the output
extract items from OPML - recurse into "folders" but do not list the folders themselves. First, list the flat items by filtering on item.type, then, add the child items by using "sub-element" Added optional filter on "folder name" for a more selective list of items.