anchor.diff:    This package also includes the bootstrapStatic method for bootstrapping applications for production builds that pre-compile templates offline.
     
     ***@angular/platform-browser-dynamic*** - Providers and a bootstrap method for applications that
  -  compile templates on the client. don’t use offline compilation.
  -  We use this package for boostrapping during development and for boostrapping plunker samples
  -  
  -  ***@angular/http*** - Angular's http client
  +  compile templates on the client. Don’t use offline compilation.
  +  We use this package for boostrapping during development and for boostrapping plunker samples.
  +  
  +  ***@angular/http*** - Angular's http client.
     
     ***@angular/router*** - Component router.
     
  
positive.code:   They do not have to be deployed with the production application although there is rarely harm in doing so.
  
    ***[concurrently](https://www.npmjs.com/package/concurrently)*** - 
    a utility to run multiple *npm* commands concurrently on OS/X, Windows, and Linux operating systems.
    
    ***[lite-server](https://www.npmjs.com/package/lite-server)*** - 
    a light-weight, static file server, written and maintained by [John Papa](http://johnpapa.net/) 
    with excellent support for Angular apps that use routing.
    
    ***[typescript](https://www.npmjs.com/package/typescript)*** - 
    the TypeScript language server including the *tsc* TypeScript compiler.
    
    ***[typings](https://www.npmjs.com/package/typings)*** - a manager for TypeScript definition files.
    Learn more about it in the [TypeScript Configuration](typescript-configuration.html#typings) chapter.
    
    This section likely grows as we add more tools, testing, and build support. 
  
negative.code:     Node.js and npm are essential to Angular 2 development. 
      
      <a href="https://docs.npmjs.com/getting-started/installing-node" target="_blank" title="Installing Node.js and updating npm">
      Get it now</a> if it's not already installed on your machine.
   
      **Verify that you are running at least node `v4.x.x` and npm `3.x.x`**
      by running `node -v` and `npm -v` in a terminal/console window.
  