-Change file identifier from path to hash.
-
-Some files can change without changing the path, since the file was
-added to the DHT by the peer. Examples are Release, Packages.gz, and
-Sources.bz2. This would cause problems when requesting these files by
-path. Instead, share the files by hash, then the request would be for
-http://127.3.45.9:9977/~<urlencodedHash>, and it would always work. This
-will require a database lookup for every request.
-
-