[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/common.php

@@ -135,6 +135,17 @@ class FSTools
         return rmdir($dirname);
     }
     
+    /**
+     * Recursively globs a directory.
+     */
+    function globr($dir, $pattern, $flags = NULL) {
+        $files = glob("$dir/$pattern", $flags);
+        foreach (glob("$dir/*", GLOB_ONLYDIR) as $sub_dir) {
+            $sub_files = $this->globr($sub_dir, $pattern, $flags);
+            $files = array_merge($files, $sub_files);
+        }
+        return $files; 
+    }
     
 }