def full_filename(for_file)
      parent_name = super(for_file)
      extension = File.extname(parent_name)
      base_name = parent_name.chomp(extension)
      base_name = base_name[version_name.size.succ..-1] if version_name
      [base_name, version_name].compact.join('-') + extension
    end
def full_filename(for_file)
      parent_name = super(for_file)
      extension = File.extname(parent_name)
      base_name = parent_name.chomp(extension)
      base_name = base_name[version_name.size.succ..-1] if version_name
      [base_name, version_name].compact.join('-') + extension
    end
Override full_filename to set version name at the end