Update the version of Tor used in the tor2web build script.
Update the version of Tor used in the tor2web build script.

Fail if the tor signature is invalid.

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