Merge pull request #9 from CodeRarity/master

[examples] socket.io example

examples/socketio/README

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+This folder contains an example of how to use Union with Socket.io.
+
+First, you'll want to install both Union and Socket.io. Run this
+command in the folder you placed these two files:
+
+npm install union socket.io
+
+You can run the server like so:
+
+node server.js
+
+Now open up your web browser to http://localhost and see the results
+in the console!

examples/socketio/index.html

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+<script src="/socket.io/socket.io.js"></script>
+<script>
+  var socket = io.connect('http://localhost');
+  socket.on('news', function (data) {
+    console.log(data);
+    socket.emit('my other event', { my: 'data' });
+  });
+</script>

examples/socketio/server.js

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+var fs = require('fs'),
+    union = require('union');
+
+var server = union.createServer({
+  before: [
+    function (req, res) {
+      fs.readFile(__dirname + '/index.html',
+	  function (err, data) {
+		if (err) {
+		  res.writeHead(500);
+		  return res.end('Error loading index.html');
+		}
+
+		res.writeHead(200);
+		res.end(data);
+	  });
+    }
+  ]
+});
+
+server.listen(8080);
+
+var io = require('socket.io').listen(server);
+
+io.sockets.on('connection', function(socket) {
+  socket.emit('news', {hello: 'world'});
+  socket.on('my other event', function(data) {
+    console.log(data);
+  });
+});