Pacifica-policy

Changed
- Add field data flag to the has doi metadata attribute by [plithnar](https://github.com/plithnar)

Changed
- Fix 84 make the elasticsearch endpoint not constant
- Fix 85 verify event policy is of type ingest

Added
- Allowed for Elasticsearch sniffing to be configurable (Pull 78)

Changed
- Fix 79 Change Web Root to be Status
- Fix 81 Modify Elasticsearch Mappings to include more fields

Added
- Events policy endpoint
- Ingest policy endpoint
- Uploader policy endpoint
- ElasticSearch synchronization
- Data release management

Changed