remove unneeded local variables
correct diag message
use an eval so bad versions do not kill us
bump up base prereq to avoid "-1, set by base.pm" versions

e.g. see http://www.cpantesters.org/cpan/report/bdcb789b-6d46-1014-9ce4-f5b15cf4dae8
more authors
Acme-CPANAuthors-Nonhuman-0.011

          - more diagnostic updates to siblings test
          - more authors added