This PS updates the developer documentation to make use
of the openstack-helm-infra repo and new developer
environment.
Implements: blueprint developer-environment
Change-Id: I45b627f78b9504dc0abfbe7d0061ea3475ee4748
This PS fixes the location of the image pull command in the gate
and also moves the position it is run at to after docker is
installed.
Change-Id: I45573ae18147a44e99698bfac208fe1f2dcf6128