code: function Cli(hydro, argv) {
    if (!(this instanceof Cli)) {
      return new Cli(hydro, argv);
    }
  
    this.hydro = hydro;
    this.argv = argv;
    this.options = {};
    this.conf = [];
    this.commands = [ 'help', 'version' ];
    this.arrayParams = { plugins: true };
  }
docs: CLI runner.
  
  @param {Object} hydro
  @param {Object} argv
  @constructor