PolicyKit: Changes to 'err-msgs-to-debug'

[Jan Rybar]

New branch 'err-msgs-to-debug' available with the following commits:
commit 7af69f9e26ea71b90cb19f3845a90f6b568e0fad
Author: Jan Rybar <jrybar at redhat.com>
Date:   Wed Aug 15 18:56:43 2018 +0200

    Error message raised on every 'systemctl start' in emergency.target
    
    Superuser should know that polkit is not running in emergency.target.
    If not, basic info with debug sources is offered instead of error message.
    Other usecases taken into account.

commit 6e83b246bb9202764276c6f821f85d1c81f479fd
Author: Jan Rybar <jrybar at redhat.com>
Date:   Wed Aug 15 18:50:56 2018 +0200

    Elaborate message printed by polkit when disconnecting from ssh
    
    Polkit raises unnecessarily elaborate warning message when user restarts machine from ssh.
    This message was moved to debug mode.