SNMP poller and persister not working after change to Django 1.8

[sublinhado]

Using the development branch and the latest rpm, I'm getting error "raise AppRegistryNotReady("Models aren't loaded yet.") django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet." when running espersistd, espoll, espolld and poller_test_generator.py

Searching about the issue, it seems to be introduced in Django 1.7 and must have affected Esmond since it migrated from Django 1.5 to Django 1.8 recently. Reference: https://docs.djangoproject.com/en/1.7/ref/applications/#troubleshooting

I've got this errors during the "Test the Persister" section of the Deployment Cookbook when running commands:
$ESMOND_ROOT/venv/bin/espersistd
$ESMOND_ROOT/util/poller_test_generator.py -W

And during "Testing Polling" and "Start Data Collection" from the Configuration documentation when running commands:
bin/espoll -f /path/to/esmond/conf router oidset
bin/espersistd -f /path/to/esmond.conf
bin/espolld -f /path/to/esmond.conf

Logs attatched
log.txt

[sublinhado]

I forgot to mention that the fixtures used in the documentation are deprecated. The test_devices.json is not available in the repository so maybe it shouldn't be mentioned. And oidsets.json should be updated to add the IfName oid and use the new correlator convention changed from IfDescrCorrelator to IfNameCorrelator.
oidsets.json.patch.txt

And the sql/testdata.sql file needs to include the mandatory aggregate field for the OID insertions.
testdata.sql.patch.txt