Automatically checking copyright dates in copyright notices#231

Draft

rptb1 wants to merge 4 commits intomasterfrom

branch/2023-03-23/check-copyright-dates

Commits on Mar 23, 2023

Commits on Mar 24, 2023

Checking all files, whether or not they are in Git.
rptb1
committed

Commits on Nov 9, 2023

Updating FIXME to a longer term TODO about non-Ravenbrook copyrights.
rptb1
committed