make openstack acceptance test template use env vars
make openstack acceptance test template use env vars

trumant/gophercloud,dudymas/gophercloud,larsbutler/gophercloud,carolynvs/gophercloud,sti-jans/gophercloud,pratikmallya/gophercloud,feiskyer/gophercloud,jamiehannaford/gophercloud,jarosser06/gophercloud,larsbutler/gophercloud,rackspace/gophercloud,jarosser06/gophercloud,trumant/gophercloud,pratikmallya/gophercloud,clintonskitson/gophercloud,carolynvs/gophercloud,clintonskitson/gophercloud,feiskyer/gophercloud,dudymas/gophercloud,rackspace/gophercloud,DSpeichert/gophercloud,DSpeichert/gophercloud,jamiehannaford/gophercloud,timbyr/gophercloud,sti-jans/gophercloud,timbyr/gophercloud