chore: include web animations polyfill in demo app (#2848)

Author: crisbeto

package.json

@@ -96,6 +96,7 @@
     "ts-node": "^2.0.0",
     "tslint": "^3.13.0",
     "typescript": "~2.0.10",
-    "uglify-js": "^2.7.5"
+    "uglify-js": "^2.7.5",
+    "web-animations-js": "^2.2.2"
   }
 }

src/demo-app/index.html

@@ -17,6 +17,7 @@
   <demo-app>Loading...</demo-app>
 
   <script src="vendor/core-js/client/core.js"></script>
+  <script src="vendor/web-animations-js/web-animations.min.js"></script>
   <script src="vendor/systemjs/dist/system.src.js"></script>
   <script src="vendor/zone.js/dist/zone.js"></script>
   <script src="vendor/hammerjs/hammer.min.js"></script>

src/e2e-app/index.html

@@ -17,6 +17,7 @@
   <e2e-app>Loading...</e2e-app>
 
   <script src="vendor/core-js/client/core.js"></script>
+  <script src="vendor/web-animations-js/web-animations.min.js"></script>
   <script src="vendor/systemjs/dist/system.src.js"></script>
   <script src="vendor/zone.js/dist/zone.js"></script>
   <script src="vendor/hammerjs/hammer.min.js"></script>

tools/gulp/constants.ts

@@ -31,7 +31,8 @@ export const LICENSE_BANNER = `/**
   */`;
 
 export const NPM_VENDOR_FILES = [
-  '@angular', 'core-js/client', 'hammerjs', 'rxjs', 'systemjs/dist', 'zone.js/dist'
+  '@angular', 'core-js/client', 'hammerjs', 'rxjs', 'systemjs/dist',
+  'zone.js/dist', 'web-animations-js'
 ];
 
 export const COMPONENTS_DIR = join(SOURCE_ROOT, 'lib');