created migration to store bookstats
created stored_books table migration for displaying/storing random books for future purposes
erb style random book display
Combine Book and StoredBook into single model
random book display adjustments
Add User migration, controller, and model.
Fix merge conflicts
Create user and wpm models.
Create session and user controllers.
Create session.js.
Change random_book_display to fix double pictures.
Change header to show login/ logout, and current user's WPM.
Change book model to reflect association with user.
vendor compiled assets