@Override
  public List<VcsException> scheduleUnversionedFilesForAddition(final @NotNull List<? extends VirtualFile> files) {
    new HgAddCommand(myProject).addWithProgress(files);
    return null;
  }
@Override
  public List<VcsException> scheduleUnversionedFilesForAddition(final @NotNull List<? extends VirtualFile> files)