Notably:
1) Fixed isRecording to not return false if service is down (for instance, it may be being restarted)
2) Added more checks to prevent from invalid starting/stopping (if in already in progress/not started).
1) Decouple clock from TripStatisticsBuilder.
2) Introduce a new param to constructor to automatically resume at given time
3) Fix various statsbuilder initialization issues in the service (wrong order, missing initialization)
Bartlomiej Niechwiej