IO.js 2.2.1发布,服务器JS引擎

IO.js 2.2.1 发布，现已提供下载：io.js-2.2.1.zip

值得关注的变化如下：

• http: reverts the removal of an undocumented client property on client connections, this property is being used in the wild, most notably by request which is used by npm. (Michaël Zasso) #1852.

更多内容请查看发行说明。

IO.js 是为 V8 引擎编写的基于事件 IO 的实现。

构建要求：

* `gcc` and `g++` 4.8 or newer, or
* `clang` and `clang++` 3.3 or newer
* Python 2.6 or 2.7
* GNU Make 3.81 or newer
* libexecinfo (FreeBSD and OpenBSD only)