Define ENSURE-... in phase 3.
Avoid name conflict by using names of macros from the CLOS package.
Added symbolic link to clos-package.
Added class-defining macros with support code to phase 3.
Added list utilities as component in phase 3.
Added support code for defmethod as component in phase 3.
Added special version of DEFMETHOD as component in phase 3.
Added definition of DEFGENIRIC as component in phase 3.
Added support code and function version of MAKE-METHOD-LAMBDA.
Added component entries for recently added files.