Create Relationship model for users
Create 'has_many through' relationships for user and their followers
Add the reverse relationship model, for looking up followers 11.1.5
Changed it to be in line with Rails 3.xx not 4.0
Add follow/unfollow buttons and following/followers stats, buttons aren't functional yet  11.2
Create a follower/following page with mini icons 11.2.3
Add follow/unfollow functionality with a Relationships controller 11.2.4
Use Ajax to follow and unfollow people.  11.2.5
Add feed funtionality by defining micropost function 11.3.2