Dealloc for PlaylistEntry seems to shrink memory leak.

Playlist/PlaylistEntry.m

@@ -79,6 +79,21 @@
 	return [NSString stringWithFormat:@"PlaylistEntry %i:(%@)", self.index, self.URL];
 }
 
+- (void)dealloc
+{
+    self.errorMessage = nil;
+    
+    self.URL = nil;
+    self.artist = nil;
+    self.album = nil;
+    self.genre = nil;
+    self.year = nil;
+    self.track = nil;
+
+    self.endian = nil;
+    [super dealloc];
+}
+
 // Get the URL if the title is blank
 @synthesize title;
 - (NSString *)title

Spotlight/SpotlightPlaylistEntry.m

@@ -78,13 +78,13 @@ static NSDictionary *importKeys;
 // Length is no longer a dependent key
 + (NSSet *)keyPathsForValuesAffectingLength
 {
-    return Nil;
+    return nil;
 }
 
 - (void)dealloc
 {
-    spotlightTrack = Nil;
-    length = Nil; 
+    spotlightTrack = nil;
+    length = nil; 
     [super dealloc];
 }