- update to 3.4.1:
* The default setting for ``CURRENCY_CHOICES`` excluded the
currency choice defined by ``DEFAULT_CURRENCY``.
* Don't register Django Money serializers by default, instead
the user should actively register a serializer in the
``settings.py``
* Fix detection of necessary migrations. Note that this means
that previously undetected migrations will be detected as of
this version

* New setting CURRENCY_DECIMAL_PLACES_DISPLAY configures decimal