Use publicURL instead of externalURL
Use publicURL instead of externalURL

This change corrects an endpoint_type in the heat configuration that was
incorrectly set to externalURL. The correct endpoint type is publicURL.

Change-Id: I93db339fc6135adb6f53efd7fe0841d2504b22be
Closes-Bug: #1449181

yanyao/openstack-deployment,yanyao/openstack-deployment,yanyao/openstack-deployment,VaneCloud/openstack-ansible,VaneCloud/openstack-ansible,VaneCloud/openstack-ansible,yanyao/openstack-deployment