http://minnow.cc.gatech.edu/squeak/1000

I've updated the changeset with Henryk Gedenryd's and Hannes Hirzel's
fixes, plus added PrologWorkspace, to make Prologing easier.

Note that the changeset had to be manually tweaked, to put
Prolog class>>compilerClass method before any method definitions with
Prolog syntax.

Bolot