Merge pull request #2263 from LLK/greenkeeper/chromedriver-2.39.0

Update chromedriver to the latest version 🚀

package.json

@@ -39,7 +39,7 @@
     "babel-preset-env": "^1.6.1",
     "babel-preset-react": "^6.22.0",
     "bowser": "1.9.3",
-    "chromedriver": "2.38.3",
+    "chromedriver": "2.39.0",
     "classnames": "2.2.5",
     "copy-webpack-plugin": "^4.5.1",
     "css-loader": "^0.28.11",