[3.1.0] The bulk of autoload support added

- Add FSTools:globr()
- require_once removed from all files
- HTMLPurifier.autoload.php added to register autoload handler
- Removed redundant chdir in maintenance script
- Modified standalone to use HTMLPurifier.includes.php for including stuff
- Added maintenance script remove-require-once.php which we used once and should never use again

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1516 48356398-32a2-884e-a903-53898d9a118a

maintenance/remove-require-once.php

@@ -0,0 +1,30 @@
+#!/usr/bin/php
+<?php
+
+chdir(dirname(__FILE__));
+require_once 'common.php';
+assertCli();
+
+echo "Please do not run this script. It is here for historical purposes only.";
+exit;
+
+/**
+ * @file
+ * Removes leading includes from files.
+ * 
+ * @note
+ *      This does not remove inline includes; those must be handled manually.
+ */
+
+chdir(dirname(__FILE__) . '/../library/');
+$FS = new FSTools();
+
+$files = $FS->globr('.', '*.php');
+foreach ($files as $file) {
+    if (substr_count(basename($file), '.') > 1) continue;
+    $old_code = file_get_contents($file);
+    $new_code = preg_replace("#^require_once .+[\n\r]*#m", '', $old_code);
+    if ($old_code !== $new_code) {
+        file_put_contents($file . '.new', $new_code);
+    }
+}