Add mistral-dashboard, python-mistralclient to  in tacker jobs
This patch adds mistral-dashboard and python-tackerclient to tacker
jobs.
export PROJECTS="openstack/networking-sfc $PROJECTS"
export DEVSTACK_LOCAL_CONFIG+=$'\n'"enable_plugin mistral git://git.openstack.org/openstack/mistral"
export PROJECTS="openstack/mistral $PROJECTS"
+ export PROJECTS="openstack/mistral-dashboard $PROJECTS"
+ export PROJECTS="openstack/python-mistralclient $PROJECTS"
esac
if [ "$BRANCH_OVERRIDE" != "default" ] ; then
