corrected DST data Switzerland 1941 and 1942, final report

[Paul Eggert]

Thanks very much for that Swiss info; it sure is authoritative!  We need
to correct the zone files accordingly.  I like the detail about the
Cantone Geneve (Geneva, Genf) between 1848 and 1894; we should put that
into a comment.

By the way, was Bern Mean Time actually exactly 29 minutes and 44
seconds ahead of GMT?  Our only source for that is Shanks.