[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/css/debug.css

@@ -37,4 +37,8 @@ table.footable>tbody>tr.footable-empty>td {
 }
 .table-lines {
   vertical-align: inherit;
+}
+tbody {
+  font-size:14px;
+  color:#333;
 }

data/web/css/mailbox.css

@@ -44,4 +44,4 @@ table.footable>tbody>tr.footable-empty>td {
 #logText {
   font-family:Consolas,Monaco,Lucida Console,Liberation Mono,DejaVu Sans Mono,Bitstream Vera Sans Mono,Courier New, monospace;
   font-size:smaller;
-}
+}

data/web/css/mailcow.css

@@ -138,4 +138,12 @@ nav .glyphicon {
 }
 .bootstrap-select.btn-group .no-results {
   display: none;
-}
+}
+.dropdown-desc {
+  display: block;
+  padding: 3px 10px;
+  clear: both;
+  font-weight: bold;
+  color: #5a5a5a;
+  white-space: nowrap;
+}