code: function Kona(options) {
  
    // call the koa constructor here
    Koa.call(this);
  
    options = options || {};
  
    // setup kona root and application paths / helpers
    this.setupPaths(options);
  
    // setup env vars, logger, needed modules
    this.setupEnvironment(options);
  
    this.loadMixins(this.root.join('package.json'));
  }
docs: the application module that will house the koa app and provide
  an api layer to registering middleware, establishing db connections,
  loading application routes, controllers, models and helpers
  
  @param {Object} options  options options from commander