Explanation for angular 2 package.json file
<p>I'm not willing to use typescript compiler provided in <a href="https://angular.io/docs/ts/latest/quickstart.html" rel="nofollow">angular 2 quick start guide</a> and will use gulp.js instead. However there are few questions I have about package.json file provided on angular website:</p>

<pre><code>{
  "name": "angular-starter",
  "version": "1.0.0",
  "scripts": {
    "tsc": "tsc",
    "tsc:w": "tsc -w",
    "lite": "lite-server",
    "start": "concurrent \"npm run tsc:w\" \"npm run lite\" "
  },
  "license": "ISC",
  "dependencies": {
    "angular2": "2.0.0-beta.0",
    "systemjs": "0.19.6",
    "es6-promise": "^3.0.2",
    "es6-shim": "^0.33.3",
    "reflect-metadata": "0.1.2",
    "rxjs": "5.0.0-beta.0",
    "zone.js": "0.5.10"
  },
  "devDependencies": {
    "concurrently": "^1.0.0",
    "lite-server": "^1.3.1",
    "typescript": "^1.7.3"
  }
}
</code></pre>

<p>I'm sure that few things like <code>tsc, tsc:w</code> script comands alongside typescript devDependency can be safely removed, but am not sure about purpose for things like <code>concurently</code> dependency as well as <code>dependency</code> section in general, could you guys provide more info on all dependencies that follow angular2? I tried looking these up in quickstart guide along apendixes, but had no luck as they are very short.</p>