remote: switch to auto-spawn modular daemons by default
remote: switch to auto-spawn modular daemons by default

When determining what socket path to connect to for a given URI we will

 - Connect to the driver specific daemon if its UNIX socket exists
 - Connect to libvirtd if its UNIX socket exists
 - If non-root, auto-spawn a daemon based on the default mode

Historically the last point would result in spawning libvirtd, but with
this change we now spawn a modular daemon. Remote client probing logic
will pick a specific hypervisor daemon to connect to when the URI is
NULL.

Tested-by: Jim Fehlig <39929b5b86d72d51fceac59b52303e3fe8a3083e@suse.com>
Reviewed-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>
Signed-off-by: Daniel P. Berrangé <bb938cf255e055ff3507f2627d214e8e62118fcf@redhat.com>

nertpinx/libvirt,jfehlig/libvirt,nertpinx/libvirt,crobinso/libvirt,crobinso/libvirt,olafhering/libvirt,zippy2/libvirt,libvirt/libvirt,zippy2/libvirt,crobinso/libvirt,olafhering/libvirt,zippy2/libvirt,nertpinx/libvirt,crobinso/libvirt,olafhering/libvirt,libvirt/libvirt,jfehlig/libvirt,nertpinx/libvirt,jfehlig/libvirt,jfehlig/libvirt,libvirt/libvirt,nertpinx/libvirt,olafhering/libvirt,libvirt/libvirt,zippy2/libvirt