Don't use __dirname

lib/connection.js

@@ -10,7 +10,7 @@ var net = require('net');
 var EventEmitter = require('events').EventEmitter;
 var util = require('util');
 
-var defaults = require(__dirname + '/defaults');
+var defaults = require('./defaults');
 
 var Writer = require('buffer-writer');
 var Reader = require('packet-reader');