add comment for the version macros and fix bits bug
fix limits
rename NDK to SDK for makefile
impl fixed imuldiv, imulsub and printf
impl screen width and height for mac, ios and windows
impl printf object
check printf object name size
impl printf fixed object
printf ipv4
modify printf object func name
modify include files for tbox.h
add user32 interface for windows
modify config.h
add config.h
remove tbox.config.h
fix select exceptfds bug
remove zlib.h
fix link bug for msvc
fix GetNetworkParams interface
fix WSABUF address alignment for iocp