Safer tordate parameters
As discussed on tails-dev (4F2FE29F.firstname.lastname@example.org), "if we want a long, stable Tor session with a time only handled by tordate (like when htpdate fails), then the only really safe thing to do is to always, no matter what, set the time to fresh-until", which effectively removes "_good enough_ time" check.
- implement this
- merge into experimental
- test in extreme conditions
- 4F2FE29F.email@example.com also has ideas to improve Tor in these situations, that should be forwarded upstream.