serve websocket connections on separate path.

js/pixl/public/index.html

		pixl.online = false;
		pixl.connect = function() {
			pixl.ws = new WebSocket('ws://' + (location.host || 'localhost:8001'));
			pixl.ws = new WebSocket('ws://' + (location.host || 'localhost:8001') + '/ws');
			pixl.ws.onopen = function() {
				pixl.online = true;
				pixl.status.online.style.backgroundColor = "green";

js/pixl/server.js

var server = http.createServer(app);
server.listen(8001);
var wss = new ws.Server({server: server});
var wss = new ws.Server({server: server, path: '/ws'});
var last_active = 0;
var world = {};