Added a deploy to heroku button. Closes #102.

README.md

@@ -2,6 +2,8 @@
 
 [![Build Status](https://travis-ci.org/fastchat/server.svg?branch=develop)](https://travis-ci.org/fastchat/server.svg?branch=develop) [![Coverage Status](https://coveralls.io/repos/fastchat/server/badge.svg?branch=develop)](https://coveralls.io/r/fastchat/server?branch=develop)
 
+[![Deploy](https://www.herokucdn.com/deploy/button.png)](https://heroku.com/deploy)
+
 This is the FastChat Server, written in CoffeeScript on Node.js. It uses socket.io for real time communication, and faciliates users to register, login, create private groups, invite users to groups, and chat. It has many clients that can be used to chat.
 
 * [Web Client](https://github.com/fastchat/web)

app.json

@@ -0,0 +1,18 @@
+{
+  "name": "FastChat Server",
+  "description": "A fast, small, efficient, chat application built on Node.js",
+  "keywords": [
+    "chat",
+    "fastchat",
+    "realtime",
+    "socket",
+    "socket.io",
+    "coffeescript"
+  ],
+  "addons": [
+    "mongolab:sandbox"
+  ],
+  "env": {
+    "ENV": "production"
+  }
+}