Rudiments 0.38 发布，C++ 常用工具包

Rudiments 0.38 发布，Rudiments 是一个 C++ 类库，提供一些用来编写守护进程、客户端和服务器端的基础类，还包括正则表达式、信号量和信号的处理。

Rudiments 0.38 改进记录：

• Several contributed modifications have been included.
• The Makefiles have been refactored for non-GNU make compatibility.
• filedescriptor::passFileDescriptor works on OS X 10.7 now.
  
• MSVC builds Release rather than Debug code by default now.
  
• The directory class now has rewind, skip, and read methods.
  
• The error class now uses strerror_r/strerror_s in a thread-safe manner.
  
• The charstring::isNumber/isInteger methods return false for strings containing only a period or negative sign.
  
• Many new methods have been added to the system class.