[1.7.0] Add missing functions for DefinitionCache: replace, flush and type-checking

- Add version to configuration object, and have update script change it accordingly

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1095 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/Config.php

@@ -23,6 +23,11 @@ require_once 'HTMLPurifier/DefinitionCache.php';
 class HTMLPurifier_Config
 {
     
+    /**
+     * HTML Purifier's version
+     */
+    var $version = '1.6.1';
+    
     /**
      * Two-level associative array of configuration directives
      */