* Make helpers.frame.report_usage work when called from any thread
* Address review comments, update tests
* Add test
* Update test
* Update recorder test
* Update tests
* Improve recorder and worker thread matching in RecorderPool
Previously we would look at the name of the threads. This
was a brittle if because other integrations may name their
thread Recorder or DbWorker. Instead we now use explict thread
ids which ensures there will never be a conflict
* fix
* fixes
* fixes
