Also help plug some memory leaks pointed out by Mike McCormack.

implement registry notifications and the strange behavior of
CloseHandle on winstation/desktop handles.

desktop, not from the parent thread.
Fixed a couple of bugs in the desktop name handling.

subdirectory.

windows/ directory.

- Fix bug with using wrong revision in security_sid_alloc.
- Add all builtin groups present in the Administrator token on Windows
  to the default token.

fd non-blocking when overlapped I/O is requested for the fd (reported
by Ivan Leo Puoti).

need a marshaller for it.

  fileio_terminate on error.
- Print out statuses in hex, rather than decimal.

-Wmissing-declarations.

- Add special cases for two lesser used types that aren't
  sizeof(DWORD) sized.

MigrateFeatureStates when implemented).