User:B-bot/source/Orphaned fair use tagger

This task does the following:


 * 1) Update User:B-bot/List of orphaned images using  to get an updated list of orphaned non-free images.
 * 2) If a non-free image has been orphaned for a full day, purge it to make sure it is still orphaned.
 * 3) If it is still orphaned, tag it with {{subst:orfud}}
 * 4) Notify the uploader with {{subst:di-orphaned fair use-notice}}