move HTMLPurifier cache inside CACHE_DIR/htmlpurifier

.gitignore

@@ -3,4 +3,5 @@ icons/*
 cache/*/*
 lock/*
 tags
+cache/htmlpurifier/*/*ser
 lib/htmlpurifier/library/HTMLPurifier/DefinitionCache/Serializer/*/*ser

functions.php

@@ -120,6 +120,7 @@
 	@$config->set('HTML', 'Allowed', $allowed);
 	$config->set('Output.FlashCompat', true);
 	$config->set('Attr.EnableID', true);
+	$config->set('Cache', 'SerializerPath', CACHE_DIR . "/htmlpurifier");
 
 	$purifier = new HTMLPurifier($config);
 

sanity_check.php

@@ -17,7 +17,7 @@
 		$err_msg = "config: your config file version is incorrect. See config.php-dist.\n";
 	}
 
-	$purifier_cache_dir = "lib/htmlpurifier/library/HTMLPurifier/DefinitionCache/Serializer";
+	$purifier_cache_dir = CACHE_DIR . "/htmlpurifier";
 
 	if (!is_writable($purifier_cache_dir)) {
 		$err_msg = "config: HTMLPurifier cache directory should be writable by anyone (chmod -R 777 $purifier_cache_dir)";