Added request and response layer.
Added view layer.
Added validation layer.
Added observers to controller in order to perform predispatch tasks like checking if the user is authenticated.
Added create user action.
Added vaidations for new users.
Modified router to use request object.
Added link to new user in the main navigation menu.
Update factories in the configuration
Removed unused variable validator in Comment's constructor.
Removed overriden methods in model Story.
Merge pull request #6 from MontealegreLuis/assignment-6-testable-app

Assignment 6 testable app