[pkg-kolab] kolab-webclient and sieve server

[Neil Price]

Kolab-webclient - looks like it is still in experimental.

Does not choose the correct sieve server with a multiserver setup and 
the user's mail server is not the default one for horde, hence vacation 
only works for those on default server.

Below is a hack quick fix. Tests OK so far.

diff /etc/kolab-webclient/ingo1/backends.php 
/etc/kolab-webclient/ingo1/backends.php.new
308,310c308,323
<     if (!is_callable('Kolab', 'getServer')) {
<         $server = $GLOBALS['conf']['kolab']['imap']['server'];
<     } else {
---
 >    if (isset($_SESSION['imp']['user']) && 
isset($_SESSION['imp']['pass'])) {
 >       require_once 'Horde/Kolab/Session.php';
 >       $session = Horde_Kolab_Session::singleton($_SESSION['imp']['user'],
 >       array('password' => Secret::read(Secret::getKey('imp'), 
$_SESSION['imp']['pass'])));
 >       $imapParams = $session->getImapParams();
 >       if (is_a($imapParams, 'PEAR_Error')) {
 >         $useDefaults = true;
 >       } else {
 >         $useDefaults = false;
 >         $server = $imapParams['hostspec'];
 >       }
 >     }
 >     if ($useDefaults)
 >       if (!is_callable('Kolab', 'getServer')) {
 >           $server = $GLOBALS['conf']['kolab']['imap']['server'];
 >       } else {
313c326