[turba] LDAp patches.

[Tarjei Huse]

hi, I've done some work on the turba ldap entries in sources.php.dist.

The patches does the following:
a) Changes the default  objectclasses:
- organizationalPerson
+ inetOrgPerson

This makes turba work with OpenLDAP 2.1.

b) Adds some comments on how to use rfc2739.schema for freebusyUrl. 

c) Adds 4 new fields:
        'office'=> 'roomNumber',
        'department' => 'ou',
        'nickname' => 'displayName',
        'website' => 'labeledURI',
These maps work with Evolution.

d) The attributes patch just adds the attributes needed to get the above
working.

e) I haven't added the patch, but to get the company attribute to work with
Evolutuion, you must change the company entry in the map to:
'company' => 'o',

I hope you add at least the a) part of the patch.

Tarjei