Merge pull request #4 from goldhand/pwa

Use sw-precache-webpack-plugin v0.9.1 for node >=4.0.0 support

Author: jeffposnick

packages/react-scripts/package.json

@@ -59,7 +59,7 @@
     "recursive-readdir": "2.1.1",
     "strip-ansi": "3.0.1",
     "style-loader": "0.13.1",
-    "sw-precache-webpack-plugin": "^0.9.0",
+    "sw-precache-webpack-plugin": "^0.9.1",
     "url-loader": "0.5.7",
     "webpack": "2.2.1",
     "webpack-dev-server": "2.4.1",