chore(webdriver): webdriver-manager dependency fixes

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

@@ -2,6 +2,12 @@
   "webdriverVersions": {
     "selenium": "2.53.0",
     "chromedriver": "2.21",
-    "iedriver": "2.53.1"
+    "iedriver": "2.52.1"
+  },
+  "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

@@ -47,8 +47,7 @@
     "url": "git://github.com/angular/protractor.git"
   },
   "bin": {
-    "protractor": "bin/protractor",
-    "webdriver-manager": "bin/webdriver-manager"
+    "protractor": "bin/protractor"
   },
   "main": "built/protractor.js",
   "scripts": {