* Returns an URL for an image or file
* @param string $appName the name of the app
* @param string $file the name of the file
+ * @param array $args array with param=>value, will be appended to the returned url
+ * The value of $args will be urlencoded
* @return string the url
* @since 6.0.0
*/
- public function linkTo($appName, $file);
+ public function linkTo($appName, $file, $args = array());
/**
* Returns the link to an image, like linkTo but only with prepending img/