Move Nova account creation out of keystone_data.sh

Supports the coming HA/proxy configuration for Nova

Change-Id: I2baf1f51486537a1489f1376d38f5710bd96c314
diff --git a/stack.sh b/stack.sh
index b8e59bc..99ed91f 100755
--- a/stack.sh
+++ b/stack.sh
@@ -934,6 +934,7 @@
     export OS_SERVICE_TOKEN=$SERVICE_TOKEN
     export OS_SERVICE_ENDPOINT=$SERVICE_ENDPOINT
     create_keystone_accounts
+    create_nova_accounts
 
     # ``keystone_data.sh`` creates services, admin and demo users, and roles.
     ADMIN_PASSWORD=$ADMIN_PASSWORD SERVICE_TENANT_NAME=$SERVICE_TENANT_NAME SERVICE_PASSWORD=$SERVICE_PASSWORD \