[change] Adjust or remove strict test

[nemesifier]

This strict test feature is backfiring quite a bit.

It's triggered every time django is initialized, also with scripts, management commands, celery, etc.

We should address this, maybe we can turn this into a management command to execute only some times.

[pniaps]

Agree with that. I have installed a controller in a local network without internet and had to disable it.

[nemesifier]

Maybe we could simply remove it to simplify our life.

[minhng99]

Yep, having this issue when boot up, set that var to False fixed it!

[nemesifier]

We could convert this to use system checks. This way it would be run only when the check command is called. We should also make sure this check is not done when DEBUG is True.

We could also issue a warning instead of an error.