updates library dependencies
Refactoring to isolate devstack conf from library tests configuration
Adds methods to create and delete files and buckets, setup_class method complete
Library passes testCreateBucket
Library passes testAddKey
Library passes testModifyKey
uses simpler method to upload content, add test for object retrieval with query string authentication
Adds s-proxy logs when testing Query String Authentication with boto
Adds swift server logs when testing jclouds
cleans log, changes bucket name in test to make sure it is compliant with swift limitations