- synchandler: combine course date with clock time via time.Date instead
of adding two absolute Unix epochs, which produced corrupt start times
- tracing: make DeploymentEnvironment configurable via config.Trace
(defaults to development instead of hardcoded production)
- http: align course handler tracer name to 'kuriweb.http' to match the
request middleware instrument so spans share the same tracer
* Added command and query for organizations
* Saving unknown organizations into database in `background` service
* Added `List` method in `OrganizationRepository`
