Update deps for webpack 2

Author: Timer

packages/react-scripts/package.json

@@ -44,7 +44,7 @@
     "eslint-plugin-import": "2.0.1",
     "eslint-plugin-jsx-a11y": "4.0.0",
     "eslint-plugin-react": "6.4.1",
-    "extract-text-webpack-plugin": "2.0.0",
+    "extract-text-webpack-plugin": "2.1.0",
     "file-loader": "0.10.1",
     "fs-extra": "0.30.0",
     "html-webpack-plugin": "2.28.0",
@@ -55,7 +55,7 @@
     "promise": "7.1.1",
     "react-dev-utils": "^0.5.2",
     "style-loader": "0.13.2",
-    "url-loader": "0.5.7",
+    "url-loader": "0.5.8",
     "webpack": "2.2.1",
     "webpack-dev-server": "2.4.1",
     "webpack-manifest-plugin": "1.1.0",