pyratemp 0.3.1 发布，Python最小的完整模板引擎

pyratemp是一个非常简单，使用方便，体积小，速度快，功能强大，模块化，可扩展的，Python模板引擎。

发布说明: New convenience functions to create HTML files and email messages have been added (in tools.py). A bug in the pseudo-sandbox has been fixed, and the template can now use set()/isinstance()/dir(), list comprehensions, and things like sorted(..., key=lambda x: myf(x[1])).