Add `TIME_ZONE` setting and comment defaults values for settings.
Add `TIME_ZONE` setting and comment defaults values for settings.

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