Re-disable babel modules transform (#1894)

* Upgrade webpack & related deps

* Disable module transform (requires webpack 2+)

Author: Timer

packages/babel-preset-react-app/index.js

@@ -110,6 +110,8 @@ if (env === 'test') {
           },
           // Disable polyfill transforms
           useBuiltIns: false,
+          // Do not transform modules to CJS
+          modules: false,
         },
       ],
       // JSX, Flow

packages/react-scripts/package.json

@@ -21,7 +21,7 @@
     "react-scripts": "./bin/react-scripts.js"
   },
   "dependencies": {
-    "autoprefixer": "6.7.5",
+    "autoprefixer": "6.7.7",
     "babel-core": "6.23.1",
     "babel-eslint": "7.1.1",
     "babel-jest": "18.0.0",
@@ -32,12 +32,12 @@
     "chalk": "1.1.3",
     "connect-history-api-fallback": "1.3.0",
     "cross-spawn": "4.0.2",
-    "css-loader": "0.26.2",
+    "css-loader": "0.27.3",
     "detect-port": "1.1.1",
     "dotenv": "2.0.0",
     "eslint": "3.16.1",
     "eslint-config-react-app": "^0.6.1",
-    "eslint-loader": "1.6.3",
+    "eslint-loader": "1.7.0",
     "eslint-plugin-flowtype": "2.21.0",
     "eslint-plugin-import": "2.0.1",
     "eslint-plugin-jsx-a11y": "4.0.0",
@@ -52,12 +52,12 @@
     "postcss-loader": "1.3.3",
     "promise": "7.1.1",
     "react-dev-utils": "^0.5.2",
-    "style-loader": "0.13.2",
+    "style-loader": "0.16.0",
     "url-loader": "0.5.8",
-    "webpack": "2.2.1",
-    "webpack-dev-server": "2.4.1",
+    "webpack": "2.3.2",
+    "webpack-dev-server": "2.4.2",
     "webpack-manifest-plugin": "1.1.0",
-    "whatwg-fetch": "2.0.2"
+    "whatwg-fetch": "2.0.3"
   },
   "devDependencies": {
     "react": "^15.3.0",