config changes for WinRT support
modified:   include/boost/config/platform/win32.hpp
  handle WINAPI_FAMILY correctly
modified:   test/boost_has_winthreads.ipp
            handle WINAPI_FAMILY correctly in test
Removing unnecessary windows include.
Removed MSOT copyright, replacing with Microsoft.
Merge branch 'winrt' of https://github.com/MSOpenTech/config into winrt
Fix broken test