[director] Use openstack_cpi 0.0.7 gem

Change-Id: Ib489071cbe3f6b9b88df6a4acf025f032060e26e
[deployer] Use openstack_cpi 0.0.7 gem

Change-Id: I92fd05220dfff595e5f2677d9fbc45701a614708
Merge "[deployer] Use openstack_cpi 0.0.7 gem"
Merge git://github.com/cloudfoundry/bosh