v0.2.1

• The falsification message now ends with the shrink path
  (Path: value:1/value:3), the same value CounterExample::$path has
  carried since 0.2.0. Replaying a descent is now a copy of one line plus the
  seed printed above it, instead of reading the path out of the counterexample
  programmatically. A run that shrank nothing has no path and the line is
  omitted rather than printed empty. Adapters that pin the message verbatim
  (the Testo adapter's golden) see one added line.