v.4.8.19

Improvements:

1. [LUNA-6411] The LUNA_EVENTS_DB setting extended with optional dsn parameter. The parameters db_host, db_port, db_name, db_user, db_password became optional.

   DSN may be specified in the following format: luna:luna@postgres01:5432,postgres02:5432/luna_events?some_option=some_value. See multi host setup for details.

   Platform configs need to be migrated. The current settings and defaults will not change during the migration process.

Migration:

See a migration manual.

[LUNA-6411] See a migration manual.