Use neutral IPs/hostnames in example configuration
Use neutral IPs/hostnames in example configuration

This commit sets any configuration fields in the example
notification.yaml containing IP addresses or host names to
127.0.0.1 or invalid host names in order to avoid overlap with
any existing host names or IP addresses.

Change-Id: I72ebe453d51cc4df0c9b762a83419305ecfcf6bf

stackforge/monasca-notification,openstack/monasca-notification,openstack/monasca-notification