Fix PLAIN authentication for some IMAP servers (#1488674)

Aleksander Machniak

2012-09-09 81a5d059d266f3520f2a9a472eca0988d847b16b

 program/include/rcube_imap_generic.php

@@ -622,6 +622,7 @@
                }
                else {
                    $authc = $user;
                    $user  = '';
                }
                $auth_sasl = Auth_SASL::factory('digestmd5');
                $reply = base64_encode($auth_sasl->getResponse($authc, $pass,
@@ -660,6 +661,7 @@
            }
            else {
                $authc = $user;
                $user  = '';
            }

            $reply = base64_encode($user . chr(0) . $authc . chr(0) . $pass);