add specs for micropost count pluralization, refactor home page into partials, employ wrap method on micropost displays
create relationship model, index follower_id, followed_id, w/ composite index ensuring unique relationships
create has_many/belongs_to association btw/ User and Relationship model
add validation on Restaurant model
create association btw. following/followed users; create follow, unfollow, and following? methods on User model
create association btw. user and followers through reverse relationship
refactor sample_data.rake and add ability to generate relationships
create partial to display a user’s follow stats
add follow/unfollow button and follow stats to user profile pages
add following/follower pages
add functionality to follow/unfollow buttons by adding #create and #destory actions on Users controller
implement Ajax version of follow/unfollow buttons
add posts from followed users to homepage status feed