Replace deprecated process.EventEmitter

[fixes #55][fixes #54]

Author: kewisch

lib/protocols/drafts.js

@@ -10,7 +10,7 @@
  */
 
 var Socket = require('../socket')
-  , EventEmitter = process.EventEmitter
+  , EventEmitter = require('events')
   , crypto = require('crypto')
   , debug = require('debug')('wsio:drafts')
 

lib/server.js

@@ -4,7 +4,7 @@
  */
 
 var protocols = require('./protocols')
-  , EventEmitter = process.EventEmitter
+  , EventEmitter = require('events')
   , url = require('url');
 
 /**

lib/socket.js

@@ -3,7 +3,7 @@
  * Module dependencies.
  */
 
-var EventEmitter = process.EventEmitter
+var EventEmitter = require('events');
 
 /**
  * Module exports.