Added extra log file /run/tor/log that won't survive reboot. (Existing log file /var/log/tor/log that survives reboot will continue to exist.) And added necessary AppArmor rules. Thanks to @troubadoour who figured out the AppArmor rules (https://www.whonix.org/forum/index.php/topic,372.0/topicseen.html). This is useful, so whonixcheck can grep the log for clock specific warnings.