Added custom logger instance

Author: vladferix

lib/stomp.js

@@ -62,6 +62,7 @@ var Stomp = module.exports = function() {
         options.vhost = args.vhost || null;
         options.timeout = args.timeout || 120000;
         options.keepAlive = args.keepAlive || false;
+        options.logger  = args.logger || null;
 
         var debug = args.debug || false;
         var StompLogger = require('./stomp.logger.js');