change NODE_ENV to "production"

{{cookiecutter.app_name}}/package.json

@@ -8,8 +8,8 @@
   },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "build": "NODE_ENV=prod ./node_modules/.bin/webpack --progress --colors -p",
     "start": "./node_modules/.bin/webpack-dev-server --port 2992 --hot --inline",
+    "build": "NODE_ENV=production ./node_modules/.bin/webpack --progress --colors -p",
     "lint": "eslint \"assets/js/*.js\""
   },
   "repository": {

{{cookiecutter.app_name}}/webpack.config.js

@@ -7,7 +7,7 @@ const ExtractTextPlugin = require('extract-text-webpack-plugin');
 const ManifestRevisionPlugin = require('manifest-revision-webpack-plugin');
 
 // take debug mode from the environment
-const debug = (process.env.NODE_ENV !== 'prod');
+const debug = (process.env.NODE_ENV !== 'production');
 
 // Development asset host (webpack dev server)
 const publicHost = debug ? 'http://localhost:2992' : '';