Delete unicorn dependency
Refactoring code style
Merge branch 'refactoring' into heroku
Add unicorn dependency
New comment invisible for not authenticated users
Change css: add outline:none for all links
Change css: add text-decoration:none for all links
Merge branch 'view' into heroku
Delete cookies in Articles#delete
Refactoring Comments#index: move Comments.new to controller
Merge branch 'controllers' into heroku
Fix max comment's title on 42
Fix spelling
Merge branch 'models' into heroku
Fix Users#delete

Now, comments and articles have not deleted when user deleting.
Merge branch 'users' into heroku
Update rails