winDBus authentication stage

[Havoc Pennington]

Ralf Habacker wrote:
> no, we can add this files and keep win32 required patches into a single
> patch file as we do on windbus now, say dbus-win32.patch After
> discussion about the required changes these patch file will be smaller
> and smaller until all changes are incorporated into the source files.

OK, but let's not add the -win files to the Makefile.am build for now.

> There are several patches open in freedesktops bugzilla
> https://bugs.freedesktop.org/show_bug.cgi?id=7935
> https://bugs.freedesktop.org/show_bug.cgi?id=9316
> https://bugs.freedesktop.org/show_bug.cgi?id=10170
> https://bugs.freedesktop.org/show_bug.cgi?id=10171
>

I just added comments to all of these.

Havoc