EPIC: Issues related to defunct public authorities

[schlos]

• [x] Defunct body is listed in batch request authorities list selection #6039
• [ ] Users can request email change for defunct bodies #5300
• [ ] exclude defunct public bodies from the public body statistics page #1484

Alaveteli version 0.33.0.0

[schlos]

Defunct body is listed in batch request authorities list selection mysociety#6039 is fixed with Alaveteli v0.38.3.0.