Also updates github.com/Microsoft/hcsshim
and github.com/docker/go-connections so they work
with the newer version of logrus.
Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
Finish the overlay->overlay2 changeover by:
* renaming overlay2 to overlay
* teaching the driver to accept the overlay.override_kernel_check and
overlay2.override_kernel_check options as having the same meaning
* registering the driver init function using both names, returning as
the driver's name
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>