PEP8
Added support for passing custom options to cloudfiles.Connection
Retry failed reads from the container (MAX_RETRIES setting)
Added retry behaviour when failing to send a file
Added delete() retries, better connection re-init on error
Use _get_cloud_obj everywhere to ensure retries
Also catch ResponseError, then retry (handle 400 Bad request syntax)
Corrected some typos, added modified_time debug logging
Resolved issue with ThreadSafeCloudFilesStorage not using authurl, timeout, or servicenet settings.