User microposts - basic model
User microposts - first validation
User microposts - User/Micropost associations
User microposts - Micropost refinments - microposts come out most recent first
User microposts - Micropost refinments - user deletion cascades to microposts
User microposts - content validations
User microposts - show microposts in user profile page
User microposts - sample users now have microposts
User microposts - microposts styling
User microposts -  users must sign in to create and destroy microposts
User microposts - refactor error messages partial
User microposts - creating microposts on Home page
User microposts - Home page shows a feed of one's own microposts
User microposts -  deleting microposts