Update for cal-julian name changes.

Update for cal-julian name changes.
(calendar-islamic-leap-year-p): Rename islamic-calendar-leap-year-p.
Update callers.
(calendar-islamic-last-day-of-month): Rename islamic-calendar-last-day-of-month.
Update callers.
(calendar-islamic-day-number): Rename islamic-calendar-day-number.
Update callers.
(calendar-islamic-to-absolute): Rename calendar-absolute-from-islamic.
Update callers, keep old name as alias.
(calendar-islamic-print-date): Rename calendar-print-islamic-date.
Update callers, keep old name as alias.
(calendar-islamic-goto-date): Rename calendar-goto-islamic-date.
Keep old name as alias.
(diary-islamic-list-entries): Rename list-islamic-diary-entries.
Update callers, keep old name as alias.
(calendar-islamic-mark-date-pattern): Rename mark-islamic-calendar-date-pattern.
Update callers, keep old name as alias.
(diary-islamic-insert-entry): Rename insert-islamic-diary-entry.
Keep old name as alias.
(diary-islamic-insert-monthly-entry): Rename insert-monthly-islamic-diary-entry.
Keep old name as alias.
(diary-islamic-insert-yearly-entry): Rename insert-yearly-islamic-diary-entry.
Keep old name as alias.