Merge pull request #22 from scriptex/greenkeeper/create-pwa-0.4.0

Update create-pwa to the latest version 🚀

Author: scriptex

package.json

@@ -46,7 +46,7 @@
     "browser-sync": "^2.24.6",
     "browser-sync-webpack-plugin": "^2.2.2",
     "clean-webpack-plugin": "^0.1.19",
-    "create-pwa": "^0.3.0",
+    "create-pwa": "^0.4.0",
     "critical": "^1.3.4",
     "css-loader": "^1.0.0",
     "cssnano": "^4.0.5",