code: function useDefaultConfig(){
  	logger.info(process.cwd());
  	if(fileutil.isExist(path.join(process.cwd() , "/config.json"))){
  		var jsonconfig = require(path.join(process.cwd() ,'/config.json'));
  		buildFromJsonConfig(jsonconfig);
  	}else{
  		logger.warn("config.json is not found. Checking for directory structure");
  		buildFromDirectory(process.cwd());
  	}
  }
docs: /*
  load config from config.json, if presents.
  Otherwise follow current directory structure.
  Use default port only.