MERGE HELPOR 2 :: Entity merging tools

[jesus2099]

@anon18945670

What annoys me personally are merge edit notes that just read “merging into oldest MBID” as written by a script. Recording merges already do require an edit note so you can submit them, but using this script circumvents that.

For the record, I have now, at last, added some checks so that this script is not used to skip edit notes.