Use the same TorConfig for bouncer and collector
Use the same TorConfig for bouncer and collector

The TorConfig object must be the same or else only the last instance is
used.

DoNotUseThisCodeJUSTFORKS/ooni-backend,dstufft/ooni-backend,DoNotUseThisCodeJUSTFORKS/ooni-backend,dstufft/ooni-backend