playlist_edit: convert to C++

Makefile.am

@@ -289,7 +289,7 @@ src_mpd_SOURCES = \
 	src/playlist.c \
 	src/playlist_global.c \
 	src/playlist_control.c \
-	src/playlist_edit.c \
+	src/PlaylistEdit.cxx \
 	src/PlaylistPrint.cxx src/PlaylistPrint.hxx \
 	src/PlaylistSave.cxx src/PlaylistSave.hxx \
 	src/PlaylistMapper.cxx src/PlaylistMapper.hxx \

src/playlist_edit.c → src/PlaylistEdit.cxx

 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
  * http://www.musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
@@ -24,12 +24,14 @@
  */
 
 #include "config.h"
+extern "C" {
 #include "playlist_internal.h"
 #include "player_control.h"
 #include "database.h"
 #include "uri.h"
 #include "song.h"
 #include "idle.h"
+}
 
 #include <stdlib.h>