Polkit not detected, bitmask doesn't exit, sigkill makes network unreachable

Bitmask-linux64-2014-09-15-882d9af8 Policykit-1, Debian Jessie, StumpWM.

(from redmine: created on 2014-09-22, closed on 2015-01-07, relates #6123 (closed), relates #6150 (closed))