9.1.1  Adding tests, action and view for users#edit
9.1.2  add users#update action
9.1.3  tests and implementation of successful profile edit
9.2.2  ensure you can not edit another users profile
9.2.3  after signin redirect to page before signin
9.3.1  add User index
9.3.2  add rake db:populate task to add sample users
9.3.3  add pagination for users index
9.3.4  refactor User#index view
9.4  add functionality to delete users
10.1.1 - 10.1.3 microposts model and association to user
10.1.4  micropost ordering and destroy association
10.1.5 micropost validations
10.2.1  display microposts on user profile page
10.2.2  rake task for sample posts and micropost css
10.3.1  micropost create/destroy access control
10.3.2  micropost create form and action
10.3.3  display post feed on home page
10.3.4  delete micropost functionality