use "extern"
Use dummy implementation just for compilation, we will later implement it for mingw.
add some comments
unix fileformat
use unix fileformat
clean
nothing much
Merge branch 'master' of https://github.com/shiluotang/httpproxy

Conflicts:
	src/httpproxy.hpp
	src/thread.hpp
	src/win32/thread.cpp
	test/main.cpp