Remove explicit support for Airbrake, rely on logger.exception instead.
Image processor: Store new width and height as part of results.
Remove vestige of Airbrake support.
Use AMQP only. Remove support for SQS and file-system queues.
Validate job input.
Fix wrong retry key in job object.
Publish notifications to river by default.
Extend spec to test reference support.
Use newer RSpec syntax.
Update readme.
Change the event name of river messages.
Let bin/tootsie take a command as the first argument.
Ignore Pebble stuff in POST data.
Fix Job#execute method name.
Exception handling.
River notifications require a uid.
Add spec for job without a path.
Readme: Add documentation about paths.
Fix a hash lookup when hash keys are strings.
Fix acking of queue messages.