Unsuccessful attempt at fixing "dismiss"/"close manager" buttons in ACL editor; non-breaking change to template API to allow plugins to add "normal" sidebar widgets in addition to the special "raw" block type, specified as the third parameter to $template->sidebar_widget(). Defaults to false, which is old behavior; new behavior (enabled by passing TRUE as the 3rd param) means that the content of the block is primarily block-level links.
<?php
$title = 'Access denied';
require('../includes/common.php');
header('HTTP/1.1 403 Forbidden');
$template->header();
echo '<p>The administrator has flagged the page "' . htmlspecialchars($_SERVER['REQUEST_URI']) . '" so that it cannot be accessed from the web. Perhaps this is because this is a cache or includes directory and only needs to be accessed by scripts.</p><p>HTTP error: 403 Forbidden</p>';
$template->footer();