Use the original socket for l3drun
Set back the /etc/group approach

Also mount the passwd'ish files into the container

#61 Mount traefik config directory into l3drun and kill the traefik container before removing network

This reverts commit 2226f696

Make sure that .gitconfig and composer's auth.json exist even before l3drun gets started, not before l3d project container starts as that's too late