[scponly] Problems getting Scponly on Cygwin

[Roland Krystian Alberciak]

I've resolved all the cygwin issues I had. I can connect to sftp fine and I
have successfully setup scponlyc.

Thanks to all who helped. I've documented the problems I ran into and the
steps I've taken to resolve them. I hope to document this in some time and
get it in the hands of people who need it, so to get them up and running
fast.

-Krystian.