code: function aggregateOptions(program, command) {
  	const argv = minimist(process.argv.slice(2));
  	let options = _.merge({}, defaultOptions, program.opts(), command.opts());
  
  	const configFile = path.resolve(process.cwd(), 'config/tamia.config.js');
  	if (fs.existsSync(configFile)) {
  		options = require(configFile)(options, argv);
  	}
  
  	return options;
  }
docs: Merge default options, project config file (if present), global commander.js options and command options.
  
  @param {object} program commander.js program.
  @param {object} command commander.js command.
  @return {object}