fixed broken RemoveDuplicates script

maybe fix the issue #1444

scripts/remove-duplicates/remove_duplicates.py

@@ -59,7 +59,7 @@ class RemoveDuplicatesListener(SongInsertVetoListener):
 
   def url_for_song(self, song):
     if not song.filename() == "":
-      return song.filename() + ":" + str(song.beginning())
+      return song.filename() + ":" + str(song.beginning_nanosec())
     else:
       return ""
 		

src/playlist/playlisttabbar.cpp

@@ -209,6 +209,7 @@ void PlaylistTabBar::timerEvent(QTimerEvent* e) {
 void PlaylistTabBar::dropEvent(QDropEvent* e) {
   if (drag_hover_tab_ == -1) {
     manager_->New(tr("Playlist"));
+    setCurrentIndex(count() - 1);
   } else {
     setCurrentIndex(drag_hover_tab_);
   }