Add Relationship model
Add user/relationship associations
Add Relationship validations
Add followed_users Relationship associations
Add followers Relationship associations
Minor refactoring of micropost_form.js
Add sample following data
Add following/follower stats and a follow form
Fix erroneous text-aside property to text-align for aside section of custom.css.scss
Add following and followers pages
Get follow button working
Implement Ajax for follow button
Implement working status feed functionality