new format for displaying a vCard

Signed-off-by: Lehner Florian <dev@der-flo.net>
further changes for displaying a vCard

Signed-off-by: Lehner Florian <dev@der-flo.net>
don't crash if tree is empty

Signed-off-by: Lehner Florian <dev@der-flo.net>
Use type parameter

Signed-off-by: Lehner Florian <dev@der-flo.net>
Don't give up if there are no address books

Signed-off-by: Lehner Florian <dev@der-flo.net>
round off the corners

Signed-off-by: Lehner Florian <dev@der-flo.net>
fix resizing

Signed-off-by: Lehner Florian <dev@der-flo.net>