Browsing French translation

65877.

* computing of relative deltas (next month, next year, next Monday, last week
of month, etc);
* computing of relative deltas between two given date and/or datetime objects
* computing of dates based on very flexible recurrence rules, using a superset
of the iCalendar specification. Parsing of RFC strings is supported as well.
* generic parsing of dates in almost any string format
* timezone (tzinfo) implementations for tzfile(5) format files
(/etc/localtime, /usr/share/zoneinfo, etc), TZ environment string (in all
known formats), iCalendar format files, given ranges (with help from
relative deltas), local machine timezone, fixed offset timezone, UTC
timezone
* computing of Easter Sunday dates for any given year, using Western, Orthodox
or Julian algorithms