Add the status to the event

opentech/apply/activity/admin.py

opentech/apply/activity/messaging.py

opentech/apply/activity/migrations/0007_message_status.py

opentech/apply/activity/models.py

...ply/activity/templates/messages/email/applicant_base.html

...tech/apply/activity/templates/messages/email/comment.html

...ly/activity/templates/messages/email/ready_to_review.html

opentech/apply/activity/tests/factories.py

opentech/apply/activity/tests/test_messaging.py

opentech/apply/stream_forms/testing/factories.py