MBS-7068: Need Email::Sender 0.120002 or newer for shift_deliveries().
Test t::MusicBrainz::Server::Controller::Track::Show requires Test::WWW::Mechanize::Catalyst 0.58, since this is the first version to handle max_redirect().
MBS-4021: Load aliases for artist credits on recordings in releases
MBS-7064: Do not create on old edit link type edits

Some old edit link type edits have "parent_id = performer", where as we
expect parent_id to be an integer. For edits where parent_id does not
look like a number, we now set the parent_id to be undefined, which
prevents an exception from being thrown.
Update remove_unused_links to DELETE FROM link_attribute_credit
MBS-2021: Derive recording.length from median(track.length)

Introduces a new 'median' aggregate for PostgreSQL and subsequently uses
it to calculate the recording.length column from all tracks linked to that
recording.
MBS-2021: Add upgrade scripts
MBS-2021: Do not allow updates to recording lengths that are not standalone
MBS-2021: PgProve the new recording.length properties
MBS-2021: Regenerate SQL scripts
MBS-2021: Fix tests since the schema change
Ignore recording length edits in the RE and elsewhere
Delete recordings from cache when tracks are inserted/updated/removed

These actions may cause the recording length to change.
Clear recordings from cache after TOC is attached
Pass used_by_tracks to recording create form
Merge branch 'beta' into mbs-2021
Factor out median_track_length function, fix pgTAP tests
mbs-7390: ArtistsThatMayBeGroups report needs to ignore orchestras and choirs
mbs-7391: remove verbiage from /entity/create, add doc links where missing
mbs-7391: the only use of "new" is gone