add some debug com. Correct a bug from my previous commit : now the arrays...

add some debug com. Correct a bug from my previous commit : now the arrays (fissile/fertile) are reset properly when build process fails.

git-svn-id: svn+ssh://svn.in2p3.fr/class@650 0e7d625b-0364-4367-a6be-d5be4a48d228