PathApiVersionContentNegotiationStrategy selects the media type based on
request path. It allows to set the correct media type for old clients
which do not set the 'Accept' header.

The new class CouchDbInitializer is using CouchDbConnector as a
dependency instead of inheriting from it. This way, circular
dependencies can be avoided.

Classes can register reasons for maintenance. While at least one reason
is set, all requests are blocked and responded to with a 503 status
code.

Jackson cannot instantiate non-static inner classes for deserialization.

Use `authProvider` + `loginId` instead of `username`.

Since VisitedRoom does not extend Entity, @JsonProperty has to be set
explicitly for id.

Moved PI timer logic to its own service. The implementation for room
owner changes has been removed for now.

A new service, repository and entity have been introduced to handle file
attachments to other entities. Attachments store meta data about the
file. The file upload is not yet implemented. It is planned to abstract
the storage handling to allow the support for different storage
solutions (local file system, database, cloud).

Additionally moved previously missed v2 entities to the v2 package.

Introduced content groups which replace question variants and support
sorting.

Limit logging for profile handling to WARN level for privacy reasons.

Marius Renner authored 7 years ago and Daniel Gerhardt committed 6 years ago

Cast int to double before division to avoid truncation of the division
result. Changed corresponding test so that it fails with the old
implementation.

Cherry-picked and backported from GH-52.

Paul-Christian Volkmer authored 7 years ago and Daniel Gerhardt committed 6 years ago

Cherry-picked from GH-52.