Removed a lot of metadata from ObjectEntity, listing objects and all object metadata come straight from the back-end now. Also added several new operations to S3ProviderClient.
Added deleteObject support
Fixed compile issue on DbObjectManagerImpl
Removed the old listbucket impl
Fix for using context lookup in object listing to get user info
Merged team/storage/riakcs-techpreview in
Changed listObjects parameter passing to the s3client to prevent empty strings
Fixed ListBucket error where calling setBucket() instead of setName() in response
Added db record save on object upload.
Add prefix, marker and maxkeys as non-optional response, so ensure they aren't null
Fix to add owner to acl and add acl to db on object put explicitly.