Fix Drupal.org security advisory coverage applications review issues

Would be great if this could be done as we're planning to use this module, but require it to be covered by the security advisory policy.

Thank you @jurgenhaas tomorrow I'll try to resolve this and other issues you addressed

I have updated the related issue and am now waiting for a response.

Stable releases for this project are covered by the security advisory policy.

Automatically closed - issue fixed for 2 weeks with no activity.