Add ability to capture taxonomic pages which have transcluded taxonavs from a known taxonomic category page, as discussed with Michael Frankis (e.g. see https://commons.wikimedia.org/wiki/Category:Milvus_milvus_in_flight plus discussion at https://commons.wikimedia.org/wiki/User_talk:Liné1#Transcluding_Taxonavigation_from_category_pages)
Add unit test for detecting transcluded categories
Merge remote-tracking branch 'yan/wikimedia_taxonav_transcludes'