diff --git a/release b/release
new file mode 100755
index 0000000..f92e437
--- /dev/null
+++ b/release
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+if [ -z "$1" ]
+then
+  echo "Must specify the release type: major, minor, patch"
+  exit;
+fi
+
+git checkout develop
+yarn version --$1
+git push origin develop
+
+git checkout master
+git pull . develop
+git push origin master
+
+git checkout develop
diff --git a/webapp.js b/webapp.js
index 1f693a5..37c58c7 100644
--- a/webapp.js
+++ b/webapp.js
@@ -36,7 +36,6 @@ import expressWinston from 'express-winston';
 
 import webpack from 'webpack';
 import webpackDevMiddleware from 'webpack-dev-middleware';
-
 import WEBPACK_CONFIG from './webpack.config.js';
 
 const APP_CONFIG = {
@@ -121,7 +120,9 @@ class MultiplayerCanvasApp {
      * The HTTP server then "drives" both IoServer and Express.
      */
     return new Promise((resolve, reject) => {
-      this.httpServer.listen(3000, (err) => {
+      const HTTP_PORT = parseInt(process.env.HTTP_PORT || '3000', 10);
+      const HTTP_HOST = process.env.HTTP_BIND_ADDRESS || '127.0.0.1';
+      this.httpServer.listen(HTTP_PORT, HTTP_HOST, (err) => {
         if (err) {
           return reject(err);
         }