Adding a new WebSocket transport to nanomsg.

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
Making path cross-platform

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
Updating Autobahn commands after testing on OS X

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
Sec-WebSocket-Protocol is now set based on socket's SP topology

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>
websocket_stress test temprarily disabled

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>