Update from upstream repo facebookincubator/create-react-app@master (#3)

* `react-error-overlay` has no dependencies now (facebook#3263)

* `react-error-overlay` has no dependencies now (it's bundled)

* Use babel 6 for now

* Add external links to deployment services (facebook#3265)

* Add warning when using `react-error-overlay` in production (facebook#3264)

* Add a warning when running minified

* Add more robust check

* Update index.js

* Use production React version for bundled overlay (facebook#3267)

* Use production React version

* We cannot strip our own checks if production

* Keep the sourcemap during minify

* Prevent devtools pollution

* Add some comments

* sigh

packages/react-error-overlay/webpack.config.iframe.js

@@ -4,45 +4,45 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  */
-'use strict';
+"use strict";
 
-const path = require('path');
-const webpack = require('webpack');
+const path = require("path");
+const webpack = require("webpack");
 
 module.exports = {
-  entry: './src/iframeScript.js',
+  entry: "./src/iframeScript.js",
   output: {
-    path: path.join(__dirname, './lib'),
-    filename: 'iframe-bundle.js',
+    path: path.join(__dirname, "./lib"),
+    filename: "iframe-bundle.js"
   },
   module: {
     rules: [
       {
         test: /\.js$/,
-        include: path.resolve(__dirname, './src'),
-        use: 'babel-loader',
-      },
-    ],
+        include: path.resolve(__dirname, "./src"),
+        use: "babel-loader"
+      }
+    ]
   },
   plugins: [
     new webpack.DefinePlugin({
       // We set process.env.NODE_ENV to 'production' so that React is built
       // in production mode.
-      'process.env': { NODE_ENV: '"production"' },
+      "process.env": { NODE_ENV: '"production"' },
       // This prevents our bundled React from accidentally hijacking devtools.
-      __REACT_DEVTOOLS_GLOBAL_HOOK__: '({})',
+      __REACT_DEVTOOLS_GLOBAL_HOOK__: "__REACT_ERROR_OVERLAY_GLOBAL_HOOK_NOOP__"
     }),
     // This code is embedded as a string, so it would never be optimized
     // elsewhere.
     new webpack.optimize.UglifyJsPlugin({
       compress: {
         warnings: false,
-        comparisons: false,
+        comparisons: false
       },
       output: {
         comments: false,
-        ascii_only: false,
-      },
-    }),
-  ],
+        ascii_only: false
+      }
+    })
+  ]
 };