* Configurable defaults for the calendar upcoming events lookahead and
maximum upcoming events displayed (bug #1623)
* Configurable setting for which days of the week are treated as weekend
(bug #1919)
* Configurable setting for which day starts the week (the admin can now set
this as the default for new users and guests without messing with language
packs) (no butracker issue)
Includes preliminary support for DST!
Includes "admin sees all events or only own?" setting (bug 1972)
WARNING: Modified moodlelib.php to explicitly specify NOT-DST when
calling mktime() and gmmktime(). This is essential since we don't want
PHP to second-guess us for the DST matters, but... it may affect existing
code?