Moved the interface directory to the new package-system convention...
Migrate monad files, too (except tests, for now)
More conversion to package-system.
Fix dependency issues in interface/all.
Remove drewc.org package nicknames.
Convert monad tests.
Some more package and system cleanups.
Some more conversion to package-system style. Split base into several files.
Remove obsolete .asd's, renaming from foo-interface + foo to foo + foo-implementation.
Further convert pure to package-system.
Further convert LIL to package-system.
Pass tests again!