Delayed or never seeing messages if state does not change at startup of app.

[f34rdotcom]

alarmdecoder/alarmdecoder/decoder.py

Line 879 in ad3ff87

if old_status is not None:

It looks like some alarm states will not generate on_ events upon startup. If the system restarts in Alarming state it wont report the alarm. Not a huge issue if we never restart. AFAIK restarts can happen in gunicorn on some timeouts and that could lead to a long series of repeated messages :(. Not want to change this but wanted to make a note and consider changes.