Import of NEILB/Text-Levenshtein-0.12 from CPAN.

gitpan-cpan-distribution: Text-Levenshtein
gitpan-cpan-version:      0.12
gitpan-cpan-path:         NEILB/Text-Levenshtein-0.12.tar.gz
gitpan-cpan-author:       NEILB
gitpan-cpan-maturity:     released