Ldap AddressBook CardDav support
Add virtual folders to CardDav:
System Directory - SWA -> AddressBook -> "System Directory" - all users in server.
Personal Directory - SWA -> AddressBook -> "Personal Directory" - personal contacts.
Customer may disable those folders by setting false for this config option
to minimize connections to Scalix Ldap server (ldapmapper) all results are cached. By default for 10 min