link-based resource descriptor discovery

 HTTP::LRDD is a Perl library to handle Link-based Resource Descriptor
 Discovery (LRRD - pronounced "lard").
 .
 Note: the LRDD specification has ceased to be, with some parts being
 merged into the host-meta Internet Draft. This CPAN module will go in
 its own direction, bundling up best-practice techniques for discovering
 links and descriptors for a given URI.