API fix and cleanup

• Remove Volto testing profiles (monolingual and multilingual). [ksuess]
• Fix REST API anonymous search according 2.x index server field type of 'allowedRolesAndUsers'. [ksuess]

New clear-and-update feature + bugfixes

• Add profiles for testing monolingual and multilingual. [ksuess]
• Add @@clear-and-update-index-server-index. [ksuess]
• Fix error handling in REST API service @kitsearch [ksuess]

Bugfix Release, Doc updates and CI-CD updates.

• Dev/CI/CD: Update Makefile and configuration.
  [thet, jensens]
• Documentation: Clarify procedure to update/initialize the Open-/ElasticSearch with data. [jensens]
• Fix: Kitsearch security check AttributeError [jensens]
• Fix: Syntax error in query template [jensens]

2.0.0 Final Release

After refactoring and enhancing the ingest service, changes to the plone plugin were needed. For details see the CHANGES.rst file.