Add some debug timing printing
Replace ProcedureInterpreter::ComboInterpreter pointer by plain object

Aso, replace ProcedureInterpreter::_pai pointer by reference
Replace ProcedureRepository::BuiltInProcedureRepository reference by plain object

Simpler and doesn't involve new/delete
Minor comment fix
Implement alterenate pair counter.

Maybe this one will be faster.
Bug fix: use equal? not eq?
Another bugfix for the new code
Misc status updates
Create a new, non-pattern-match version
Reorder common code so that it can be shared.
Status update
Remove wrong pointer to ref operator
Suppress compile warning (order of member assignment)
Turtle down constness
Final few notes, for this project.
make [100%] built; make examples [100%] built; make test 88% tests pass, 15 tests failed out of 121
moved ocpkg to scripts directory