Node dynamic import modules

Node dynamic import modules(es6)

ES6 specification doesn't seem to support the dynamic loading of modules:

function renderView(viewName) {
    const view = require(path.join('./views', viewName));
    ...
}

@kruncher dynamic module loads go through System

function renderView (viewName) {
  System.import(path.join('./views', viewName))
    .then(view => ...)
    .catch(error => console.error(error.stack));
}