JCLOUDS-584 - Update HP Cloud object storage provider

https://issues.apache.org/jira/browse/JCLOUDS-584
@andrewgaul The answer got lost in the outdated diff below...  not sure how to avoid this but if anyone has any hints let me know.  Click on the "Show outdated diff" below this comment and we covered this question below.  I also updated the code and commented it to make it more clear.