Node module missing from dist build using Angular2 cli - node.js

Question

I'm using the Angular 2 cli to scaffold and build my Angular 2 website, I'm now trying to add authentication to it and added the angular2-jwt node module using
npm install angular2-jwt --save
it has added the module to the package.json but is not being placed in the dist folder when I run
ng build
What else do I need to do to get it in the dist folder or diagnose what's going wrong.
Here's the package,json:
{
"name": "depots",
"version": "0.0.0",
"license": "Apache-2.0",
"angular-cli": {},
"scripts": {
"start": "ng server",
"postinstall": "typings install --ambient",
"lint": "tslint src/**/*.ts",
"format": "clang-format -i -style=file --glob=src/**/*.ts",
"pree2e": "webdriver-manager update",
"e2e": "protractor"
},
"private": true,
"dependencies": {
"angular2": "2.0.0-beta.9",
"angular2-jwt": "^0.1.8",
"clang-format": "^1.0.35",
"es6-promise": "^3.0.2",
"es6-shim": "^0.33.3",
"ng2-table": "^1.0.0-beta.0",
"reflect-metadata": "0.1.2",
"rxjs": "5.0.0-beta.2",
"systemjs": "0.19.20",
"zone.js": "0.5.15"
},
"devDependencies": {
"angular-cli": "0.0.*",
"angular-cli-github-pages": "^0.2.0",
"ember-cli-inject-live-reload": "^1.3.0",
"glob": "^6.0.4",
"jasmine-core": "^2.3.4",
"jasmine-spec-reporter": "^2.4.0",
"karma": "^0.13.15",
"karma-chrome-launcher": "^0.2.1",
"karma-jasmine": "^0.3.6",
"protractor": "^3.0.0",
"silent-error": "^1.0.0",
"tslint": "^3.3.0",
"typescript": "^1.8.7",
"typings": "^0.6.6",
"ts-node": "^0.5.5"
}
}
Here's the contents of ember-cli-build.js
/* global require, module */
var Angular2App = require('angular-cli/lib/broccoli/angular2-app');
module.exports = function(defaults) {
var app = new Angular2App(defaults, {
vendorNpmFiles: []
});
return app.toTree();
}