JCLOUDS-584 - Update HP Cloud object storage provider

https://issues.apache.org/jira/browse/JCLOUDS-584
@demobox Whatever you guys prefer...  I tend to use SkipException because it nags me on every build and reminds me how many tests I am avoiding proper fixes for :-)  I think this particular case will be fixed by the openstack-swift work done by @jdaggett once I can port this provider to it.