Update README per issue #45
Add info about maintaining.
SESBackend: support keyword arguments to override settings.XXX config
Merge pull request #51 from waylybaye/master

Make settings optional.
Bounce/Complaint message handling

Added support for handling bounce/complaint messages via Amazon's Simple
Notification Service (SNS). The SNS service can send a POST request
containing JSON to your application whenever a bounce or complaint
message is received.
See: http://docs.amazonwebservices.com/ses/latest/DeveloperGuide/NotificationsViaSNS.html

This implementation handles the POST message and parses out the JSON and
sending an appropriate signal (bounce_received or complaint_received).
The bounce can then be handled appropriately by the application.
Object Formatting Changes.
Pass raw_message to signals
Updated error handling in the handle_bounce view.
Added signal handlers for logging to the DB.

Added the log_bounce_to_db and log_complaint_to_db signal handlers.
These signal handlers are provided as-is and need to be connected
to the appropriate signal in the user's application.