- all (sql) accounts have now allways a contact associated with them (account_id is added as new column to the contacts table)
- contacts queries are simplefied a lot now, as no more join with the accouns-table, union and case when statesments are necessary
- lot of the special handling for accounts in the contacts class is no longer needed
- new contact-repository mode "sql-ldap" which additional writes all changes to the ldap repository, to allow to use it read-only from eg. thunderbird and still have the full sql speed and features within eGW (not yet fully working!)
==> requites update of API and addressbook to work (setup!)
