Speed up local deployment
Speed up local deployment

Following commits embraces GIT_DEPTH flag
from devstack and sets it to 1.

This change removed cloning entire repositories
and goes into shallow clone concept. However
only recent commit is required to get
proper status of given repo.

Change-Id: I4dfa4c2cdb76cdf18bf57af10b3fd6aa57aaafce

sapcc/monasca-api,sapcc/monasca-api,stackforge/monasca-api,openstack/monasca-api,stackforge/monasca-api,openstack/monasca-api,sapcc/monasca-api,stackforge/monasca-api,openstack/monasca-api,stackforge/monasca-api