message: Fixed even handlers on Refresher
diff: @@ -67,6 +67,48 @@ class Refresher
  }
  }
  + /**
  + * Add event listener
  + * @param {String} event - Event name
  + * @param {function} listener - Event listener
  + * @returns {IncomingStream}
  + */
  + on()
  + {
  + //Delegate event listeners to event emitter
  + this.emitter.on.apply(this.emitter, arguments);
  + //Return object so it can be chained
  + return this;
  + }
  +
  + /**
  + * Add event listener once
  + * @param {String} event - Event name
  + * @param {function} listener - Event listener
  + * @returns {IncomingStream}
  + */
  + once()
  + {
  + //Delegate event listeners to event emitter
  + this.emitter.once.apply(this.emitter, arguments);
  + //Return object so it can be chained
  + return this;
  + }
  +
  + /**
  + * Remove event listener
  + * @param {String} event - Event name
  + * @param {function} listener - Event listener
  + * @returns {OutgoingStream}
  + */
  + off()
  + {
  + //Delegate event listeners to event emitter
  + this.emitter.removeListener.apply(this.emitter, arguments);
  + //Return object so it can be chained
  + return this;
  + }
  +
  /**
  * Stop refresher
  */
  