Automattic/syndication — pull request #43 by Jackreichert (2014-05-17 16:25:09+00:00)
Title: Adds Category (and tag) Mapping

Notes on the patch:
Simplepie doesn't pull attributes, so there is no real way to
differentiate currently between categories and tags. My solution was to
check first for existing categories, if not exist, tags, if not exist
create as a category.