Use node-pty as it's been published

demo/app.js

@@ -2,7 +2,7 @@ var express = require('express');
 var app = express();
 var expressWs = require('express-ws')(app);
 var os = require('os');
-var pty = require('pty.js');
+var pty = require('node-pty');
 
 var terminals = {},
     logs = {};

package.json

@@ -44,8 +44,8 @@
     "glob": "^7.0.5",
     "jsdoc": "3.4.3",
     "mocha": "2.5.3",
+    "node-pty": "^0.4.1",
     "nodemon": "1.10.2",
-    "pty.js": "https://github.com/Tyriar/pty.js/tarball/c75c2dcb6dcad83b0cb3ef2ae42d0448fb912642",
     "sleep": "^3.0.1",
     "sorcery": "^0.10.0",
     "tslint": "^4.0.2",

src/test/escape-sequences-test.js

@@ -1,6 +1,6 @@
 var glob = require('glob');
 var fs = require('fs');
-var pty = require('pty.js');
+var pty = require('node-pty');
 var sleep = require('sleep');
 var Terminal = require('../xterm');