Minimum version: Midgard 1.1.1 (Iron River)
Lists all articles that have their topic field set to topic. The optional parameter sort is used to sort the articles, and can be one of: "alpha", "reverse alpha", "name", "reverse name", "score", "reverse score", "calendar", "revised", "reverse revised". Default sort is by created date. The optional parameter type can be used to filter articles. Default value is no filter.
Returns an object traversable by calling fetch if successfull. Returns false on failure.