windows: Fixed compilation with Visual Studio 2008

[saghul]

Fixes saghul/pyuv#123

[saghul]

I see we now use this if-include thing in 7 places. How about creating some uv-stdint.h file like:

#ifndef UV_STDINT_H_
#define UV_STDINT_H_

#if defined(_MSC_VER) && _MSC_VER < 1600
  # include "stdint-msvc2008.h"
#else
  # include <stdint.h>
#endif

#endif

/cc @bnoordhuis

[bnoordhuis]

Landed a fix that removes some code instead of adding more in 8531046. Thanks for pointing out the issue though. :-)

I see we now use this if-include thing in 7 places. How about creating some uv-stdint.h file

That's not a bad idea but I would restrict its usage to src/win. I don't really want to add another public header if I can avoid it.