Added comment to component mop-class-hierarchy in phase 2.
Added comment to component mop-class-hierarchy in phase 2.

vtomole/SICL,vtomole/SICL,clasp-developers/SICL,clasp-developers/SICL,clasp-developers/SICL,vtomole/SICL,clasp-developers/SICL,vtomole/SICL