#11 shutting down first, then unprovisioning
- this proved to solve the 100%CPU issue after undeploy
- the issue was probably in the fact unexport happened before shutdown,
  so it is likely some of the threads were still running endlessly and
  tried to poll the GPIO pins (that were already exported at that time)
- doing shutdown first (with register for off states and unexoirting)
  and then umprovision solved it