# File lib/rhc/config.rb, line 168
    def save!(options, fields=nil)
      File.open(path, 'w') do |f| 
        f.puts self.class.options_to_config(
          options, 
          fields
        )
      end
      @opts, @opts_config, @env_config, @additional_config, @local_config, @global_config = nil
      load_config_files
      self
    end