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- Add ``APNS_DEFAULT_BATCH_SIZE=100`` config option.
- Pin ``pushjack`` dependency version to ``>=1.0.0``. (**breaking change**)
- Remove ``send_bulk`` method as bulk sending is now accomplished by the ``send`` function. (**breaking change**)
- Remove ``APNS_HOST``, ``APNS_PORT``, ``APNS_FEEDBACK_HOST``, and ``APNS_FEEDBACK_PORT`` config options. These are now determined by whether ``APNS_SANDBOX`` is ``True`` or not.
- Remove ``APNS_MAX_NOTIFICATION_SIZE`` as config option.
- Remove ``GCM_MAX_RECIPIENTS`` as config option.
- Rename ``APNS_ERROR_TIMEOUT`` config option to ``APNS_DEFAULT_ERROR_TIMEOUT``. (**breaking change**)