* Log to DataDog when a welcome notification is created
* Fix typo in Metrics::RecordDailyUsageWorker
* Add Metrics::RecordDailyNotificationsWorker to log notification counts to DataDog
* Add specs around DataDog logging for welcome notifications + click events
* Call Metrics::RecordDailyNotificationsWorker from within log_daily_usage_measurables task
* Use user_id instead of user, move notification title into tags
* Change models and related files
* Update controllers and specs
* More renaming
* Seek and destroy, I mean search and replace
* Round up the stragglers
* Ground control to Major Travis...
* More fixes
* PR feedback
* Various fixes
* Rename view
* Fix list query builder
* Unify request specs
* Fix some API spec errors
* Fix remaining API specs
* Make spec conform to API
* Fix leftover problems
* Fix JS tests
* Fix column name in select
* Fix API specs
* Fix search specs
* Paging Mr. Travis