Don't require migrations that are only available in Django 1.8.
Don't require migrations that are only available in Django 1.8.

ic-labs/icekit-events,ic-labs/django-icekit,ic-labs/django-icekit,ic-labs/django-icekit,ic-labs/django-icekit,ic-labs/icekit-events,ic-labs/icekit-events