Version 2.0.23

Fixed isPromise

Version 2.0.22

Improved retry.

Version 2.0.21

Improved BytesIO.js
Improved for Weixin App

Version 2.0.20

Fixed a bug of Future.

Version 2.0.19

Added isSubscribed and subscribedList

Version 2.0.18

Fixed can't find global object in webpack

Version 2.0.17

Fixed an error caused by https://bugs.webkit.org/show_bug.cgi?id=80797
Added 微信小程序 support
Try to fixed can't find setTImeout in webpack

Version 2.0.16

Fixed timeout bug of HalfDuplex socket client.

Version 2.0.15

Added uriList property.
Added onfailswitch event.
Added failround readonly property.
No wait on the first round failswitch.

Version 2.0.14

Added failswitch parameter for subscribe