[1.5.x] Fixed #20868 -- Added an email to django-announce as a security step.
[1.5.x] Fixed #20868 -- Added an email to django-announce as a security step.

Thanks garrison for the report.

Backport of 5737c57d95 from master

bliti/django-nonrel-1.5,hasadna/django,ccn-2m/django,imtapps/django-imt-fork,bliti/django-nonrel-1.5,imtapps/django-imt-fork,ccn-2m/django,imtapps/django-imt-fork,hasadna/django,hasadna/django,bliti/django-nonrel-1.5,ccn-2m/django,ccn-2m/django