addressbok X-ANNIVERSARY should be stored as Y-m-d
|Reported by:||imlich||Owned by:|
The X-ANNIVERSARY in the addressbook is stored in the VCARD according to local date settings. This will result in some other clients not being able to read the date.
Similarily to birthday handling in program/include/rcube_vcard.php anniversaries should be written in VCARD representation in Y-m-d format