refactoring di Sandro
added aggregate_root
rspec helper and includes path
created domain events
removed unused class
Merge branch 'master' of https://github.com/emadb/ruby_loves_ddd into cqrs_es

Conflicts:
	lib/basket/basket.rb
	spec/basket/basket_repository_spec.rb
	spec/basket/basket_spec.rb
	spec/integration_spec.rb