fix(mobile): include vendor scripts in bundle

Closes #733

Author: jeffbcross

lib/broccoli/angular2-app.js

@@ -415,6 +415,7 @@ class Angular2App extends BroccoliPlugin {
     var indexFile = path.join(this._sourceDir, 'index.html');
     var indexContent = fs.readFileSync(indexFile, 'utf8');
     var scriptTagVendorFiles = indexContent.match(/vendor\/[^"']*\.js/gi);
+    var vendorTree = this._getVendorNpmTree();
 
     var scriptTree = new BroccoliFunnel(preBundleTree, {
       include: scriptTagVendorFiles
@@ -430,7 +431,7 @@ class Angular2App extends BroccoliPlugin {
     var bundleTree = new BundlePlugin([jsTree]);
 
     if (this.ngConfig.apps[0].mobile) {
-      bundleTree = concat(BroccoliMergeTrees([jsTree, scriptTree, bundleTree], {
+      bundleTree = concat(BroccoliMergeTrees([vendorTree, jsTree, scriptTree, bundleTree], {
         overwrite: true
       }), {
         headerFiles: this._options.polyfills.concat([