incremental updates and command-list/update kung fu

this needs some serious cleaning up and testing

git-svn-id: https://svn.musicpd.org/mpd/trunk@692 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/directory.h

@@ -22,6 +22,7 @@
 #include "../config.h"
 
 #include "song.h"
+#include "list.h"
 
 #include <stdio.h>
 #include <sys/param.h>
@@ -32,7 +33,7 @@ int isUpdatingDB();
 
 void directory_sigChldHandler(int pid, int status);
 
-int updateInit(FILE * fp);
+int updateInit(FILE * fp, List * pathList);
 
 void initMp3Directory();