[sslh] sslh 1.8-rc3: support bold ssh clients

[Yves Rutschle]

Hello everyone,

More news from multiplexing front: 1.8-rc3 fixes a funny
bug. The bug is funny because it relied on the very
assumption that sslh used for 4 years: that the ssh client
waits for the server to speak first. 

The RFC says no such thing. 

In practice there are "shy" clients that won't speak first
(OpenSSH and Putty are shy, and a large majority of ssh
clients are based on those), but there are also "bold"
clients that speak first: Bitvise Tunnelier and ConnectBot
are among those.

sslh 1.8-rc3 fixes this issue by looking at the first packet
sent by the client and working out if it's ssh or not.

It's available from the usual place here:
http://rutschle.net/tech/sslh.shtml

Let me know if you encounter any problems.

Cheers,
Y.