CLP, DAPTO, and perr are now generated locally when the Eli system
is built. The specifications are unchanged, and can be found
Eli/pkg/clp, Eli/pkg/dapto, and Eli/pkg/parser/perr.fw.
The Cola tool has been withdrawn. There were maintenance issues, and
the tool was deemed to be redundant in view of the availability of
identical capability in PGS.