tuf-spec.txt was updated to include the latest metadata changes, such as version numbers, and the "lazy bin walk" scheme was implemented in updater.py.
Removed checking whether "path_hash_prefix" is consistent with the
delegated paths in the delegator, because now the delegated paths may
list directories instead of simply files.
Removed checking whether "path_hash_prefix" is consistent with the
delegated paths in the delegator, because now the delegated paths may
list directories instead of simply files.