Added messages at start and end of customizing run-time environment R2.
Added messages at start and end of customizing run-time environment R2.

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