utils/fields.py, also fix a couple of issues in NomCom tool (spelling
bugs and avoid overwriting base_fields on forms with dynamic data)
- Legacy-Id: 8276
* Create a new models NomComGroup with public_key field. Default type is nomcom
* News urls and views to separate members and chair forms
* Add rolodex url when person not found.
* Views access is only for secretariat and chair roles
See #904
- Legacy-Id: 5069