[Merge] lp:~abompard/postorius/django16 into lp:postorius

The proposal to merge lp:~abompard/postorius/django16 into lp:postorius has been updated. Status: Needs review => Merged For more details, see: https://code.launchpad.net/~abompard/postorius/django16/+merge/257517 -- Your team Mailman Coders is requested to review the proposed merge of lp:~abompard/postorius/django16 into lp:postorius.