Use WebpackDevServer API instead of CLI

So we can run the demo on heroku

Author: Brandon Dail

.npmignore

@@ -1,3 +1,4 @@
 src
 test
 demo
+Procfile

Procfile

@@ -1 +1 @@
-web: npm run demo:prod
+web: npm run demo

demo/server.js

@@ -0,0 +1,14 @@
+const WebpackDevServer = require('webpack-dev-server');
+const webpack = require('webpack');
+const config = require('./webpack.config');
+
+const port = process.env.PORT || 3000;
+
+var server = new WebpackDevServer(webpack(config), {
+  contentBase: 'demo',
+  stats: {
+    colors: true,
+  },
+});
+
+server.listen(port, function() {});

demo/webpack.config.js

@@ -6,6 +6,7 @@ module.exports = {
   output: {
     path: __dirname,
     filename: 'bundle.js',
+    publicPath: __dirname
   },
   module: {
     loaders: [{

package.json

@@ -14,8 +14,7 @@
     "build-dist-min": "NODE_ENV=production webpack",
     "prepublish": "npm run test && npm run build && npm run dist",
     "clean-dist": "rimraf dist && mkdir dist",
-    "demo": "webpack-dev-server --hot --inline --port 3000 --config demo/webpack.config.js --content-base demo",
-    "demo:prod": "webpack-dev-server --hot --inline --port 80 --config demo/webpack.config.js --content-base demo"
+    "demo": "node demo/server"
   },
   "keywords": [
     "react",