MFH: r525227 r525228 r525229

Update to 1.11.28

Changes: https://docs.djangoproject.com/en/1.11/releases/
Security: 5a45649a-4777-11ea-bdec-08002728f74c

Update to 2.2.10

Changes: https://docs.djangoproject.com/en/2.2/releases/
Security: 5a45649a-4777-11ea-bdec-08002728f74c

Update to 3.0.3

Changes: https://docs.djangoproject.com/en/3.0/releases/
Security: 5a45649a-4777-11ea-bdec-08002728f74c

Approved by: ports-secteam (miwi)