Django 2.2+ support#7

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samwoodson wants to merge 4 commits intoccn-2m:masterfrom

Commits on Oct 17, 2019

Fix JS for newer django
zaquest
committed

Commits on Apr 29, 2020

Commits on Aug 18, 2020

Merge remote-tracking branch 'codegraft/master'
Lev Maximov
committed