Updated Lokad.Cloud.Storage to Azure Storage. 2.0.4.0

Hello, I made an attempt to update Lokad.Cloud.Storage to Azure Storage. 2.0.4.0 in order to migrate Lokad.Cloud to Azure SDK 1.8. Other than changing out the API calls with the Storage version 2.0.4.0 code I didn't change much.  I had to redo the ShouldRetry actions with the new IRetryPolicy interface and implement each one as a class.  All the unit tests pass but I hope someone can verify that I didn't break anything that I am not aware of.  The timeouts that were previously 90 seconds have now been reduced to 60 seconds because of changes to the Azure.Storage SDK.  Please let me know what you think.  Thanks Pete