Ishtar changelog
================

### Features ###
- Performance: revoke cascade task
- JSON types: multi valued choices
- Forms:
  - context record: change field order
- Admin: available/unavailable action
- Bulk action:
  - site: remains, cultural attributions, collaborators,
  - operation: collaborators
  - find: conservation commentary
  - context record: town, relation - type
- Search:
  - document: operation year, operation type

### Bugs ###
- Search: fix url for person and organization
- Geo: use own precise multipolygone centroid before parent precise point