This downloads, caches and parses the BackPAN index into a local database
for efficient querying.

Its a pretty thin wrapper around DBIx::Class returning the
DBIx::Class::ResultSet manpage objects which makes it efficient and
flexible.

The Comprehensive Perl Archive Network (CPAN) is a very useful collection
of Perl code. However, in order to keep CPAN relatively small, authors of
modules can delete older versions of modules to only let CPAN have the
latest version of a module. BackPAN is where these deleted modules are
backed up. It's more like a full CPAN mirror, only without the deletions.
This module provides an index of BackPAN and some handy methods.