It looks like the link to his tutorial has been lost with the new addition
of the git/bzr tutorial that follows it, on worg.  I hope it's still
available, as I intend to implement some of the ideas in that document.

Alan

-- 
Alan Davis

"An inviscid theory of flow renders the screw useless, but the need for one
non-existent."                     ---Lord Raleigh (John William Strutt), or
else his son, who was also a scientist.

It is undesirable to believe a proposition when
there is no ground whatsoever for supposing it is true.
    ---- Bertrand Russell