Revision History 1.2.1

• Many values rewritten at once, recorded quickly. Outside::valuesRewritten($sql, $params, $note, $opts): a module
  that rewrote thousands of values in one statement and kept each value's old content hands over a query over that
  record; one entry per record is written with the same lines a save would have, records are read 500 at a time, and
  the data check's numbers are written down together. A record that had changed without a record before is still
  reported first.
• Outside::around() takes $opts: run (one job written in several calls is one card) and automatic (folded
  away on the page like other entries nobody was behind). The three-argument call works as before.
• Entries take run too, and addMany($entries, ['limit' => 0]) lifts the 5,000-a-request limit for a job that
  writes one entry on each of many records.
• The data check reads the numbers of the resources one save touched together, not one by one: saves of many
  records through Outside::around() are much faster.
• "Show automatic (n)" counts every entry nobody was behind, saves too. New index k_auto on
  revision_history_event; upgrade from 1.2.0: Modules → Revision History → Upgrade.