#96 Support icewarp:default-contacts-URL property

[Adam Tauno Williams]

Support icewarp:default-contacts-URL property
In the icewarp namespace
Used by eM client

[Adam Tauno Williams]

def get_property_icewarp_default_contacts_url(self):
    if self.entity.is_account:
        if self.entity.object_id == self.context.account_id:
            return u'<D:href>/dav/Contacts/Favorites/</D:href>'
    self.no_such_path( )

[Adam Tauno Williams]

stub added in r4430 (30df948c1127)
possible still not really the correct behavior - especially since the workings of this property are not documented