Generate a Relationship model for followers and followed users
Build the User/Relationship association
add presence validations on Relationship
update the user model to include followed user properties
update the user model to include followers properties
add some sample following data by updating the populate rake task
add routes for following and followers
add some user statistics to the homepage and to the user profile
dd the follow/unfollow button (form)
add pages for listing followers and followed users
create the Relationships controller with the create and destroy actions
add some ajax to the follow/unfollow button
add the wall
add a missing = in a will_paginate
remove useless </div>