chore(webdriver): update the configuration file

closes #2402

Author: cnishina

Diff for: README.md

@@ -45,9 +45,10 @@ Clone the github repository:
     npm install
     cd ..
 
-Start up a selenium server. By default, the tests expect the selenium server to be running at `http://localhost:4444/wd/hub`. A selenium server can be started with `webdriver-manager`.
+Start up a selenium server. By default, the tests expect the selenium server to be running at `http://localhost:4444/wd/hub`. A selenium server can be started with [webdriver-manager](https://github.com/angular/webdriver-manager).
 
-    bin/webdriver-manager start
+    webdriver-manager update
+    webdriver-manager start
 
 Protractor's test suite runs against the included test application. Start that up with
 

Diff for: config.json

@@ -3,5 +3,11 @@
     "selenium": "2.53.0",
     "chromedriver": "2.21",
     "iedriver": "2.53.1"
+  },
+  "cdnUrls": {
+    "selenium": "https://selenium-release.storage.googleapis.com/",
+    "chromedriver": "https://chromedriver.storage.googleapis.com/",
+    "iedriver": "https://selenium-release.storage.googleapis.com/"
   }
+
 }

Diff for: package.json

@@ -19,6 +19,7 @@
     "jasminewd2": "0.0.9",
     "optimist": "~0.6.0",
     "q": "1.4.1",
+    "request": "~2.67.0",
     "saucelabs": "~1.0.1",
     "selenium-webdriver": "2.53.2",
     "source-map-support": "~0.4.0",