Adds welcome page.
Adds article/new page.
Adds basic create action for articles.
Adds article model.
Allows articles to be created.
Allows showing of articles.
Add articles index page.
Adds links.
Adds validations to the article.
Allows editing of articles.
Allows deleting of articles.
Adds comment model.
Allows commenting on articles.
Extracts comment partial.
Extracts comment creation partial.
Allows destroying of comments.
Deleting an article now also deletes all comments for that article.
Adds author scaffolding.