[2.0.1] Improve special case handling for <script>

- DirectLex now honors comments with greater than or less than signs in them
- Comments are transformed into script elements, ending comments are scrapped
- Buggy generator code rewritten to be more error-proof
- AttrValidator checks if token has attributes before processing
- Remove invalid documentation from Scripting
- "Commenting" of script elements switched to the more advanced version

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1189 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/AttrValidator.php

@@ -8,6 +8,8 @@ class HTMLPurifier_AttrValidator
             
         $definition = $config->getHTMLDefinition();
         
+        if ($token->type !== 'start' && $token->type !== 'empty') return $token;
+        
         // create alias to global definition array, see also $defs
         // DEFINITION CALL
         $d_defs = $definition->info_global_attr;