Attempt a more windows friendly build by using npm and webpack instead of shell commands

Author: Munter

package.json

@@ -34,7 +34,8 @@
     "fetch:supporters": "node src/utilities/fetch-supporters.js",
     "fetch:starter-kits": "node src/utilities/fetch-starter-kits.js",
     "prebuild": "npm run clean",
-    "build": "npm run fetch && npm run content && NODE_ENV=production webpack --config webpack.prod.js && npm run sitemap && echo webpack.js.org > dist/CNAME",
+    "build": "run-p fetch content && NODE_ENV=production webpack --config webpack.prod.js",
+    "postbuild": "npm run sitemap",
     "test": "npm run lint",
     "lint": "run-s lint:*",
     "lint:js": "eslint src --ext .js,.jsx,.md --cache true --cache-location .cache/.eslintcache",

src/CNAME

@@ -0,0 +1 @@
+webpack.js.org

webpack.prod.js

@@ -30,10 +30,13 @@ const prod = {
     new webpack.DefinePlugin({
       'process.env.NODE_ENV': JSON.stringify('production')
     }),
-    new CopyWebpackPlugin([{
-      from: './assets/icon-square-small-slack.png',
-      to: './assets/'
-    }])
+    new CopyWebpackPlugin([
+      {
+        from: './assets/icon-square-small-slack.png',
+        to: './assets/'
+      },
+      'CNAME'
+    ])
   ]
 };