Fix missing l10n of edit button

AspenProject/VLCPlaylistViewController.m

@@ -40,6 +40,7 @@
     self.navigationItem.leftBarButtonItem = addButton;
 
     self.navigationItem.rightBarButtonItem = self.editButtonItem;
+    self.navigationItem.rightBarButtonItem.title = NSLocalizedString(@"BUTTON_EDIT", @"");
 
     if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
         _gridView.separatorStyle = AQGridViewCellSeparatorStyleEmptySpace;