Automate checking existing fallbacks
I use a manual process to check existing fallbacks. It would be great if the updateFallbackDirs.py script would automatically read src/or/fallback_dirs.inc, and check each fallback for errors.
For details, see: https://trac.torproject.org/projects/tor/wiki/doc/UpdatingFallbackDirectoryMirrors
I think it can go in 0.3.0