boost thread system. threads. simple program.

简单的线程库，使用了C++11的thread并模仿其接口。主要目的是支持TR1中的TLS功能，同时模仿TR1中的Thread接口，在移除caffe中对boost的依赖有很大作用（VS2013不支持TLS）。-A simple thread library, which use the thread of C++11 and its interface. It can be used to support the TLS in C++ TR1. It is used to remove boost