New script for adding Wikidata links from Wikipedia.
wp_artist_viaf: check for invalid or deleted VIAF.
discogs_release_packaging: Handle common typo for digipak
discogs_cover_art: Migrate to schema 17
discogs_cover_art: Handle some http errors for providers.
mbbot::wp::wikipage: handle deleted pages:
A deleted page has no revisions.
wp_wikidata_links: Enable auto-editing.
Merge branch 'master' of github.com:murdos/musicbrainz-bot