Fix dependency requirement

Author: Aitor Magán García

lib/sentinel.js

@@ -7,7 +7,7 @@ var _ = require('underscore');
 
 var log = require('PDITCLogger');
 var logger = log.newLogger();
-logger.prefix = path.basename(module.filename, '.js');
+logger.prefix = require('path').basename(module.filename, '.js');
 
 Sentinel = function(port, host){
   var self = this;