[tor-qa] Introducing hardened builds for 64bit Linux

[anonym]

Georg Koppen:
> Did you start the bundle via the start-tor-browser.desktop thing/the
> start-tor-browser script shipped with it or by other means? If the
> former any ideas on how to reproduce your crashes?

Sorry, I screwed up! I use a custom script that does basically the same,
and while I did copy the ASAN_OPTIONS, I missed the exporting of that
variable. With it exported, the error disappears. Sorry for the noise!

Cheers!