Add ActiveRecord-related libraries.
Arsenicum::QueueImplementation -> Arsenicum::Backend
Serializer's class declaration is now flat.
Add publication processor for the AR queue.
Fix autoloading path.
Add Sqs and AR to the autoloaded modules.
As::Backend::AR depends on AR.
Add publisher / subscriber.
Relocate libraries.
Add QueueSubscriber.
Add migration template.
Made extend publisher / subscriber.
Refined class structure.
Discards implementations.
Rewriting core.
Implemented core.
Fix name.
Add Serializer.
Add Arsenicum.
Complement processing.