Added history and improved marking of playing track.

wobuzz/player/playlist.py

@@ -116,3 +116,15 @@ class Playlist:
         wbz.write(wbz_data)
         wbz.close()
 
+    def append_track(self, track):
+        self.tracks.append(track)
+
+        if self.view:
+            self.view.append_track(track)
+
+    def h_last_track(self):
+        # get last track in history (only gets used in player.history)
+
+        if len(self.tracks) > 1:
+            return self.tracks[-2]
+