Re-write activeTraces logic to use hash-table
Re-write activeTraces logic to use hash-table

Fixes issue of activeTraces collection wasn’t cleaned up properly due to wrong object comparison when using a simple array
opbeat/opbeat-react,opbeat/opbeat-react,opbeat/opbeat-react,jahtalab/opbeat-js,jahtalab/opbeat-js,opbeat/opbeat-angular,opbeat/opbeat-js-core,opbeat/opbeat-angular,opbeat/opbeat-angular,jahtalab/opbeat-js,opbeat/opbeat-js-core