* A more compact version of generateDays(). (ManageCalendar.template.php)

! generateDays was resetting the day to 1 if the 30th or 31st of a month was selected, and then the month was switched to another with the same number of days. (ManageCalendar.template.php)

! calendar: Fixing 4 strings. (Calendar.french.php, ManageCalendar.french.php)

Signed-off-by: Nao <nao@wedge>