def set_config_file_options
      if @template_name.nil? || @template_path.nil?
        jumpstart_menu
      elsif File.exists?(FileUtils.join_paths(@template_path, '/jumpstart_config/',"#{@template_name}.yml"))
        @config_file = YAML.load_file(FileUtils.join_paths(@template_path, "/jumpstart_config/", "#{@template_name}.yml"))
        @install_command ||= @config_file[:install_command]
        @install_command_args ||= @config_file[:install_command_args]
        @replace_strings ||= @config_file[:replace_strings].each {|x| x}
        @install_path ||= @config_file[:install_path]
      else
        jumpstart_menu
      end
    end
def set_config_file_options
      if @template_name.nil? || @template_path.nil?
        jumpstart_menu
      elsif File.exists?(FileUtils.join_paths(@template_path, '/jumpstart_config/',"#{@template_name}.yml"))
        @config_file = YAML.load_file(FileUtils.join_paths(@template_path, "/jumpstart_config/", "#{@template_name}.yml"))
        @install_command ||= @config_file[:install_command]
        @install_command_args ||= @config_file[:install_command_args]
        @replace_strings ||= @config_file[:replace_strings].each {|x| x}
        @install_path ||= @config_file[:install_path]
      else
        jumpstart_menu
      end
    end
Sets up JumpStart::Base object with preliminary instance variables.
 Sets up instance variables from YAML file