Versioning and Releases?

This project is going fairly well, and working fairly consistently... I was wondering if it was appropriate to suggest if it might be time to see it on PyPI?

`Distutils` takes most of the work out of getting it packaged to be able to be installed via `pip`.

Of course, that'd mean making use of version numbers, and probably milestones to decide when a version is ready...

首先审查项目当前的打包和发布设置，然后确定 PyPI、pip、Distutils、版本号和里程碑应如何配合。完成的标准是：项目拥有一套达成共识的版本管理和发布流程，并且可以打包以便通过 pip 安装。

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