Updated openstack/openstack
Project: openstack-dev/devstack  78cc3871ded2175285dbafc9d72aca831d1ce2b2
null
Removed dependency from dotcloud repos for the Nova docker driver

Since the Nova driver is in Nova core from the Havana release, this
will just clean the docker nova driver install.

Change-Id: Ic98012b8b5e54e727a1b11f4d32f6623d2067621