Cloned from launchpad blueprint https://blueprints.launchpad.net/horizon/+spec/horizon-oslo-logging. Description: Horizon can be modified to use oslo logging mechanism. This will allow Horizon to have a smoother integration with the rest of the modules by using the same logging infrastructure. Moreover, by using Oslo, Horizon logs could be incorporated in a larger logging framework like Logstash + Elasticsearch and Kibana UI. Specification URL (additional information): None