old_contents: /**
   * System configuration for Angular samples
   * Adjust as necessary for your application needs.
   */
  (function (global) {
    System.config({
      // paths serve as alias
      paths: {
        'npm:': 'node_modules/'
      },
      // map tells the System loader where to look for things
      map: {
        // our app is within the dist folder
        'app': 'src',
        // angular bundles
        '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
        '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
        '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
        '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
        '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
        '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
        '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
        '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
        // rxjs 
        'rxjs': 'npm:rxjs',
        // ng-bootstrap
        '@ng-bootstrap/ng-bootstrap': 'npm:@ng-bootstrap/ng-bootstrap/bundles/ng-bootstrap.js'
      },
      packages: {
        'rxjs': { defaultExtension: 'js' },
        'app': { main: 'main.js', defaultExtension: 'js', format: 'cjs' }
      }
    });
  })(this);
  
new_contents: /**
   * System configuration for Angular samples
   * Adjust as necessary for your application needs.
   */
  (function (global) {
    System.config({
      // paths serve as alias
      paths: {
        'npm:': 'node_modules/'
      },
      // map tells the System loader where to look for things
      map: {
        // our app is within the dist folder
        'app': 'src',
        // angular bundles
        "@angular/animations": "npm:@angular/animations/bundles/animations.umd.js",
        '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
        '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
        '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
        '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
        '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
        '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
        '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
        '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
        // rxjs 
        'rxjs': 'npm:rxjs',
        // ng-bootstrap
        '@ng-bootstrap/ng-bootstrap': 'npm:@ng-bootstrap/ng-bootstrap/bundles/ng-bootstrap.js'
      },
      packages: {
        'rxjs': { defaultExtension: 'js' },
        'app': { main: 'main.js', defaultExtension: 'js', format: 'cjs' }
      }
    });
  })(this);
  
subject: add animations to config.