Release 0.2.0

CHANGES:

* Fix: handle windows paths correctly CLI help output
  (#121)
* Fix: correct path masking on Windows paths
  (#121)
* Fix: prevent "Bad file descriptor" errors arising from output redirection on
  Windows (#121)
* Fix: handle temporary file deletion cleanly on windows
  (#119)
* Fix: don't set signals on Windows (#118).
* Add `Testo.with_chdir` (#104).
* Fix nonsensical diff formatting (#104).
* Fix: enable the approval of the output of a test that is expected to
  complete but produces the incorrect output. Running the `approve`
  subcommand on such a test now successfully changes its status from
  XFAIL to XPASS ([#103](#103)).
* Allow multiple `-s` search queries in the same test command,
  allowing the selection of various tests by their name or hash
  ([#110](#110)).
* Add a `--expert` option to hide the legend printed by `run` and
  `status` ([#109](#109)).
* Add a `--autoclean` option to `run` and `status` subcommands to
  delete test snapshots that don't belong to any known test as it
  typically happens after tests are renamed
  ([#126](#126)).
* Add support for timeouts
  ([#127](#127)).

Release 0.1.0

CHANGES:

First official release