Update the current script to include some better functionality

Right now, having some new functionality would be great:

1. ability to confirm the mirrored files are 100% the same as those on torproject.org (hashing, pgp signatures, etc)
2. ability to automatically remove mirrors that are not serving the exact same files after some time period (hours preferably).
3. ability to automatically re-instate mirrors that were not 100% mirrors of torproject.org once they have been verified to be back in sync (and serving valid copies).
4. supports IPv4 and IPv6 addressing.