Protocols.WebSocket client mode

[Marcus Agehall (nu med K-m�rkt fastighet och ny elcentral) @ Pike (-) developers forum]

I've been spending some time in the realm of Protocols.WebSocket
lately. I've been working on a client mode for it as it only contains
the server side parts at the moment.

I now have a working version for Pike 8.0 (which is the version that I
want it for) but when I tried to port it to 8.1 I ran into a bit of a
problem.

It seems that the 8.1 branch has been rewritten to work with
Stdio.Buffer, which is good. But from what I can tell, SSL.File does
not support that API. Is there a reason for this?

Also, any objections to extending the WebSocket module in 8.0 to also
provide a client mode?