Import of RJBS/List-MapList-1.004 from CPAN.

gitpan-cpan-distribution: List-MapList
gitpan-cpan-version:      1.004
gitpan-cpan-path:         RJBS/List-MapList-1.004.tar.gz
gitpan-cpan-author:       RJBS
gitpan-cpan-maturity:     released