------------------
Highlights
^^^^^^^^^^
* Added the `called.with_args(*args, **kwargs)` assertion.
* Added the `called.min` and `called.max` assertions.
* Added the `called.twice` assertion.
* Python 3 and PyPy support.
* The `Expects` package should be installed independently.
Backwards-incompatible
^^^^^^^^^^^^^^^^^^^^^^
* The `called` assertion now should be "called" as a method: `expect(spy).to.have.been.called()`.