Added option to make media search recursive

By providing a key 'recursive' in the opts array of the media search, the search recurses into namespaces.

darcs-hash:20080823100126-2b4f5-62a051fc901d61158347a2e87181e21fda87471d.gz

inc/search.php

@@ -201,7 +201,9 @@ function search_namespaces(&$data,$base,$file,$type,$lvl,$opts){
  */
 function search_media(&$data,$base,$file,$type,$lvl,$opts){
   //we do nothing with directories
-  if($type == 'd') return false;
+  if($type == 'd') {
+  	return ($opts['recursive']);
+  } 
 
   $info         = array();
   $info['id']   = pathID($file,true);