Truncate long away messages

* long away message fix

* Use mbstring functions, better variable names

include/adminlist.php

@@ -66,12 +66,20 @@ function getAdminList() {
                     $offlineClients[] = '<p><span class="label label-primary iconspacer">' . htmlspecialchars($userInfo['client_nickname']) . '</span><span class="label label-danger pull-right">' . translate($lang["adminlist"]["status"]["offline"]) . '</span></p>';
                     continue;
                 }
+
+                $userAwayTitle = '';
+
                 if(!$user["client_away_message"]) {
                     $userAway = translate($lang["adminlist"]["status"]["away"]);
                 } else {
                     $userAway = htmlspecialchars($user["client_away_message"]);
+                    if (mb_strlen($userAway) > 23) {
+                        $userAwayTitle = 'title="' . $userAway . '"';
+                        $userAway = mb_substr($userAway, 0, 23) . "...";
                     }
-                $onlineClients[] = '<p><img src="lib/ts3phpframework/images/viewer/' . $user->getIcon() . '.png" alt="User status">' . '<span class="label label-primary">' . htmlspecialchars($user) . '</span>' . ($user['client_away'] ? '<span class="label label-warning pull-right">' . $userAway . '</span>' : '<span class="label label-success pull-right">' . translate($lang["adminlist"]["status"]["online"]) . '</span>') . '</p>';
+                }
+
+                $onlineClients[] = '<p><img src="lib/ts3phpframework/images/viewer/' . $user->getIcon() . '.png" alt="User status">' . '<span class="label label-primary">' . htmlspecialchars($user) . '</span>' . ($user['client_away'] ? '<span class="label label-warning pull-right" ' . $userAwayTitle . '>' . $userAway . '</span>' : '<span class="label label-success pull-right">' . translate($lang["adminlist"]["status"]["online"]) . '</span>') . '</p>';
             }
 
             foreach (array_merge($onlineClients, $offlineClients) as $str)