[1.7.0] Code audit

- Add set accessor, update access control on variables in AttrTypes
- Add warning notes to non-unit tested, out of date or unused code files
- Remove redundant include in EntityParser, expand string regexp to match all ASCII XML-style entities
- Remove obsolete hooks in HTMLModule

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1078 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/Language.php

@@ -2,6 +2,8 @@
 
 require_once 'HTMLPurifier/LanguageFactory.php';
 
+// UNUSED
+
 class HTMLPurifier_Language
 {