----------------
Initial release, as a proof of concept.
* Feature 6 - ``transmute`` command run migrations forward. Mutations are
collected in ``mutations/`` folder from current working directory.
* Feature 17 - Mutations are executed only once.
* Feature 16 - Mutations are executed in predictable order.
* Feature 13 - Mutations can be grouped by release or version.
* Feature 15 - Mutations in "recurrent" release are always executed.
* Feature 14 - Mutations in "development" release are always executed,
backward if necessary, then forward.
* Feature 4 - ``transmute --version`` shows version of `transmutator`.