David McDonald 148a5ab456 Refactor dates being passed around ...

I believe this way is nicer to read, we don't have to change between
datetimes and strings and back.

2020-02-21 15:01:19 +00:00

..

__init__.py

…

annual_billing_dao.py

…

api_key_dao.py

…

complaint_dao.py

…

daily_sorted_letter_dao.py

…

dao_utils.py

…

date_util.py

…

email_branding_dao.py

…

events_dao.py

…

fact_billing_dao.py

…

fact_notification_status_dao.py

…

inbound_numbers_dao.py

…

inbound_sms_dao.py

…

invited_org_user_dao.py

…

invited_user_dao.py

…

jobs_dao.py

…

letter_branding_dao.py

…

notifications_dao.py

…

organisation_dao.py

…

permissions_dao.py

…

provider_details_dao.py

…

provider_rates_dao.py

…

returned_letters_dao.py

…

service_callback_api_dao.py

…

service_data_retention_dao.py

…

service_email_reply_to_dao.py

…

service_inbound_api_dao.py

…

service_letter_contact_dao.py

…

service_permissions_dao.py

…

service_sms_sender_dao.py

…

service_user_dao.py

…

service_whitelist_dao.py

…

services_dao.py

…

template_folder_dao.py

…

templates_dao.py

…

uploads_dao.py

…

users_dao.py

…