[Web] Fix log line handling

[Web] Add mailcow UI logs
[Web] Changes to _SESSION['return'] logic and logger (more to come)
[Web] Show last login
[Web, Postfix] Allow to disable sender check completely
[Web] Many minor fixes
[Web] Update some libs

data/web/inc/ajax/log_driver.php

@@ -1,12 +0,0 @@
-<?php
-session_start();
-require_once $_SERVER['DOCUMENT_ROOT'] . '/inc/prerequisites.inc.php';
-header('Content-Type: text/plain');
-if (!isset($_SESSION['mailcow_cc_role'])) {
-	exit();
-}
-if (isset($_GET['type']) && isset($_GET['msg'])) {
-  global $mailcow_hostname;
-  //empty
-}
-?>