rename public.php/cached_url to cached

classes/diskcache.php

@@ -273,7 +273,7 @@ class DiskCache {
 	}
 
 	public function get_url($filename) {
-		return get_self_url_prefix() . "/public.php?op=cached_url&file=" . basename($this->dir) . "/" . basename($filename);
+		return get_self_url_prefix() . "/public.php?op=cached&file=" . basename($this->dir) . "/" . basename($filename);
 	}
 
 	// check for locally cached (media) URLs and rewrite to local versions

classes/handler/public.php

@@ -737,7 +737,7 @@ class Handler_Public extends Handler {
 		<?php
 	}
 
-	function cached_url() {
+	function cached() {
 		list ($cache_dir, $filename) = explode("/", $_GET["file"], 2);
 
 		// we do not allow files with extensions at the moment