Use the FSF's electronic address instead of the snail-mail address.
A few more topics in the README file and its translation.
Add the day name to the date string for the 360 ordinary days.
Update the README and translated files.
For end of year days: display the day name and the day number in addition to the special name.
Remaining bug: the calendar-french-goto-date allows the "jour complémentaire" pseudo-month,
but does not yet check that the subsequent number is lower than or equal to 5 (or 6
during leap years).