Added HTML Purifier 4.8.0 library using standard location

sites/all/libraries/htmlpurifier/HTMLPurifier/DefinitionCache/Null.php

@@ -0,0 +1,76 @@
+<?php
+
+/**
+ * Null cache object to use when no caching is on.
+ */
+class HTMLPurifier_DefinitionCache_Null extends HTMLPurifier_DefinitionCache
+{
+
+    /**
+     * @param HTMLPurifier_Definition $def
+     * @param HTMLPurifier_Config $config
+     * @return bool
+     */
+    public function add($def, $config)
+    {
+        return false;
+    }
+
+    /**
+     * @param HTMLPurifier_Definition $def
+     * @param HTMLPurifier_Config $config
+     * @return bool
+     */
+    public function set($def, $config)
+    {
+        return false;
+    }
+
+    /**
+     * @param HTMLPurifier_Definition $def
+     * @param HTMLPurifier_Config $config
+     * @return bool
+     */
+    public function replace($def, $config)
+    {
+        return false;
+    }
+
+    /**
+     * @param HTMLPurifier_Config $config
+     * @return bool
+     */
+    public function remove($config)
+    {
+        return false;
+    }
+
+    /**
+     * @param HTMLPurifier_Config $config
+     * @return bool
+     */
+    public function get($config)
+    {
+        return false;
+    }
+
+    /**
+     * @param HTMLPurifier_Config $config
+     * @return bool
+     */
+    public function flush($config)
+    {
+        return false;
+    }
+
+    /**
+     * @param HTMLPurifier_Config $config
+     * @return bool
+     */
+    public function cleanup($config)
+    {
+        return false;
+    }
+}
+
+// vim: et sw=4 sts=4