Edc

------
- bump to edc 0.3.15

----------
- bump to edc 0.3.14
- Testing environment
- add Django 3.2
- drop Django 3.0
- drop Python 3.7
- Respond
- add requirement for respond-africa 0.1.8
- add respond diagnosis labels
- use death report model mixin from respond
- use Diagnosis class from respond
- Health Economics Form
- add shortened 'HE (Rev 2)' proxy model, form and admin class
- 'HE (Rev 2)' form required at 6m visits on or after 2021-04-26
- 'HE (Rev 1)' form now only required for 6m visits before 2021-04-26
- 'HE (Rev 1)' form not required at baseline or 12m

------
- bump edc to 0.5.23
- addresses issue with names (PII) fields not showing despite
having correct perms

------
- simplify death report model and aeinitial model
- Update death/aeinitial form/admin classes and PDF report classes
- update action items for simplified death/aeinitial model
- add hospitalization form
- use get_adverse_event_app_label func instead of directly accessing
settings attr.

------
- add new requirement (edc-ltfu)

------
- manipulate changeform data to remove legal and familiar name
if required
- set initial data on modeladmin class instead of via querystring
- add prn and unscheduled forms to baseline schedule
- bump edc 0.5.20