Fix Heat Kolla demo in contrib

Heat demo script actually use deprecated Openstack Heat client.
* script has been updated to use Openstack client.
* small log refactoring

Change-Id: I857bc1342e3b26c2bf299642ca5483b4ce78e303

contrib/demos/heat/launch

+#!/bin/bash
+
 VM_COUNT=3
 IMAGE_FLAVOR=m1.small
-PUBLIC_NET_ID=$(neutron net-list | grep public | awk '{print $2}')
-DEMO_NET_ID=$(neutron net-list | grep demo | awk '{print $2}')
-DEMO_SUBNET_ID=$(neutron net-list | grep demo | awk '{print $6}')
+PUBLIC_NET_ID=$(openstack network show public1 | awk '/ id /{print $4}')
+DEMO_NET_ID=$(openstack network show demo-net | awk '/ id /{print $4}')
+DEMO_SUBNET_ID=$(openstack subnet show demo-subnet | awk '/ id /{print $4}')
 
-echo Public net id is $PUBLIC_NET_ID
-echo Demo net id is $DEMO_NET_ID
-echo Demo subnet id is $DEMO_SUBNET_ID
+echo "Public net id is $PUBLIC_NET_ID"
+echo "Demo net id is $DEMO_NET_ID"
+echo "Demo subnet id is $DEMO_SUBNET_ID"
 
-heat stack-create steak --template-file steak-rg.yaml --parameters="vm_count=$VM_COUNT;image_flavor=$IMAGE_FLAVOR;public_net_id=$PUBLIC_NET_ID;demo_net_id=$DEMO_NET_ID;demo_subnet_id=$DEMO_SUBNET_ID"
+openstack stack create --parameter vm_count=$VM_COUNT \
+                       --parameter image_flavor=$IMAGE_FLAVOR \
+                       --parameter public_net_id=$PUBLIC_NET_ID \
+                       --parameter demo_net_id=$DEMO_NET_ID \
+                       --parameter demo_subnet_id=$DEMO_SUBNET_ID \
+                       -t steak-rg.yaml steak