jitsi documentation

[Bob Eager]

First, thanks to all who worked on this port. I looked at this a while
ago and was totally confused by it all!

I have installed jitsi in a FreeBSD jail and it works very nicely. I
wrote down what I did so that I could do it again in rather less time.
Then I got a bit carried away.

What resulted was a detailed document on how to set it all up - and a
few other bits. It might be useful to others.

See http://www.bobeager.uk/jitsi.html for details.