no "add" anymore, only "replace"

add did add to many double entries. It was never really reliable. And I never encountered a server that did not just add a "replaced" item, if really it was never on the server till then.

Signed-off-by: Garfonso <achim@tratschtante.de>
fixed an issue with contact sync

it didn't work if synced for the very first time, because directory was not created for temporary contacts.

Signed-off-by: Garfonso <achim@tratschtante.de>
switched to vcard (3.0)
implemented photo sync (from server)
v0.1.26

2013-06-11 => 0.1.26
- switched to vCard (3.0)
- fixed issues with contact sync and notes (from server)
- implemented foto sync for contacts (one way from server)
- switched back to internet confidence "fair".
- fixed an issue with contact sync, won't work if synced for the very
first time.
- disabled "add" again. Now also for new items "replace" is used. Never
encountered a server that will not just fallback to "add". But explicit
"add" did produce many double entries, sometimes.