Merge pull request #5 from seuros/master

 Add Sidekiq adapter/wrapper fixes #3
With dependencies for Sidekiq and Sucker Punch
List adapters supported and wanted
Merge pull request #10 from seuros/master

Lazy-load adapters, fixes #6
Dont need the explicit error handling -- if the require fails, it will raise exactly the error we want to communicate anyway. Also use the load path, so we can allow plugins, rather than requre_relative
Implemented delayed job