Comply with Ridley name requirement

error examples: https://github.com/berkshelf/berkshelf/issues/1197
STDERR: Ridley::Errors::MissingNameAttribute The metadata at '/tmp/d20141219-4467-hh5yym' does not contain a 'name' attribute. While Chef does not strictly enforce this requirement, Ridley cannot continue without a valid metadata 'name' entry.