libsaria: Track()s add themselves to the index and library

When one is created, it adds itself to the library and index.  Up next:
removing themselves when they are destroyed.

include/libsaria/track.h

@@ -33,7 +33,7 @@ namespace libsaria
 			string *artist_lc;
 			string *album_lc;
 			void make_lenstr();
-			void format_tags();
+			void do_bookkeeping();
 
 		public:
 			Track();

libsaria/library/path/file.cpp

@@ -1,7 +1,5 @@
 
-#include <libsaria/index.h>
 #include "../library.h"
-#include "../list/list.h"
 #include "path.h"
 
 void LibraryPath::load_file(InFile &in, string dir)
@@ -17,8 +15,6 @@ void LibraryPath::load_file(InFile &in, string dir)
 	for (unsigned int i = 0; i < size; i++) {
 		track = new libsaria::Track(in);
 		file_list.push_back(track);
-		libsaria::index::add_track(track);
-		libsaria::library::list_track(track);
 	}
 }
 

libsaria/library/path/update.cpp

@@ -132,8 +132,6 @@ void LibraryPath::add_track(string &filepath, sid_t &songid)
 	if (has_id(songid) == false) {
 		track = new libsaria::Track(filepath, songid);
 		file_list.push_back(track);
-		libsaria::index::add_track(track);
-		libsaria::library::list_track(track);
 	}
 }
 

libsaria/track/track.cpp

@@ -1,6 +1,8 @@
 
 #include <libsaria/track.h>
 #include <libsaria/format.h>
+#include <libsaria/library.h>
+#include <libsaria/index.h>
 
 #include <taglib/tag.h>
 #include <taglib/fileref.h>
@@ -43,7 +45,7 @@ namespace libsaria
 		channels = prop->channels();
 
 		make_lenstr();
-		format_tags();
+		do_bookkeeping();
 	}
 
 	Track::Track(InFile &in)
@@ -62,17 +64,19 @@ namespace libsaria
 		in >> bitrate;
 		in >> sample;
 		in >> channels;
-		format_tags();
+		do_bookkeeping();
 	}
 
 	Track::~Track()
 	{
 	}
 
-	void Track::format_tags()
+	void Track::do_bookkeeping()
 	{
 		artist_lc = lowercase(artist);
 		album_lc = lowercase(album);
+		libsaria::index::add_track(this);
+		libsaria::library::list_track(this);
 	}
 
 	void Track::save(OutFile &out)