[XeTeX] Updated tutorial posted

[David Perry]

I have posted an updated version of my tutorial for using XeTeX with OT 
features and multilingual documents on my page at 
http://scholarsfonts.net.  Not a major revision, but fixes some typos, 
clarifies some things, and takes account of new versions of fontspec and 
bidi.

There's also information about my new book, which might be of interest 
to some people here.

Once the dust settles from the release of the book, I'll see if some of 
the material in my tutorial can move to our new document wiki. 
Meanwhile it's available in its current form.

David