[3.1.0] Move $safe from ElementDef to HTMLModule

- Make $info in AttrTypes protected, to force cloning
- Remove copy() functions in favor of clone

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1664 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/HTMLModule/Image.php

@@ -12,7 +12,7 @@ class HTMLPurifier_HTMLModule_Image extends HTMLPurifier_HTMLModule
     
     public function __construct() {
         $img =& $this->addElement(
-            'img', true, 'Inline', 'Empty', 'Common',
+            'img', 'Inline', 'Empty', 'Common',
             array(
                 'alt*' => 'Text',
                 'height' => 'Length',