[evolution-patches] patch for ldap addr book backend

[Sivaiah Nallagatla <snallagatla novell com>]

Hi,
Attached patch fixes some of the  issues mentined in #59582
(1) Calendar/Free busy uri fileds are disbled in ui eventhough backend
supports them - reason is wrong ldap attribute names in code
(2) Adds email field to list of supported fields, also uses
e_contact_filed_name to get field names insted of hard coding them. This
is better since cahnging names in e-contact.c can break things in the
backend, though it has lsight overhaed of function calls 
(3) Corrects Anniversary date showing incorrectly problem - a small
probelm in parameter passing


Thanks,
Siva