* Create middleware and service for pubsub metrics
* Use pubsub middleware for all request
* Replace isEnabled with isDisabled to avoid negation
* Use new headers names
* Add acceptance and unit tests
* Remove commented log calls
* Remove only filters in tests
Remove typo
* Refactor service to ease integration test
* Fix interaction with query controller
* Use middleware at api-router and test all controllers
* Rename user middleware function
* Use sinon latest version
* Create middleware and service for pubsub metrics
* Use pubsub middleware for all request
* Replace isEnabled with isDisabled to avoid negation
* Use new headers names
* Add acceptance and unit tests
* Remove commented log calls
* Remove only filters in tests
Remove typo
* Refactor service to ease integration test
* Fix interaction with query controller
* Use middleware at api-router and test all controllers
* Rename user middleware function
* Use sinon latest version
* Fix tests
* Fix typos
* Checks if pubsub config exists to enable the service
* Fix typo
* Normalize headers values for pubsub
* Trim fields when normalizing
* Trim fields when normalizing
