109.17.00

- Added an option to `Async.Log.Rotation` to include the date in
  logfile names.

  This is mostly for archiving purposes.
- Made `Versioned_rpc.Callee_converts.Pipe_rpc.implement_multi` agree
  with `Rpc.Pipe_rpc.implement` on the type of pipe rpc
  implementations.
- Improved the performance of `Versioned_typed_tcp`.

  Avoided creating deferreds while reading the incoming messages.