Added some missing configuration (to_hash)
First test to check if all the configuration is well setted
Added tests for the attributes of Tag
Created the Factories for the test
Added validation to Tag in the name (presence)
Added validations to Post for the attributes that MUST have (presence)
Created the PostRepository
Added a method that was missing to check if the model was for errors or not
Created the Interactor::CreatePost to create the post
Refactored the Tests to include a Helpers::Factories, used to create stuff
Created a module to UpdateAttributes to the Entity
Created Interacor UpdatePost
Created the ShowPost Interactor
Created the Interactor to List the Post
Refactored the Rakefile
Added the order of the posts when retrived
Added the habiliti to filter the posts for the TAGs
Reconfigure the Rakefile to add more options on the tests
Changed the Helper to create a Post
Implemented the PostDecorator