10.1.1: Generating Micropost model
10.1.1: The initial Micropost spec
10.1.1: Migrating microposts
10.1.2: Add ests for the validity of a new micropost
10.1.2: A validation for the microposts user_id
10.1.3: tests for the microposts user association
10.1.3: Add test for the users microposts attribute
10.1.3: Add micropost belongs_to a user
10.1.3: Add user has_many microposts
10.1.4: complete factory file, including a new factory for microposts
10.1.4: Testing the order of a users microposts
10.1.4: Ordering the microposts with
10.1.4: Testing that microposts are destroyed when users are
10.1.4: Ensuring that a users microposts are destroyed along with the user
10.1.5: Add tests for the Micropost model validations
10.1.5:  The Micropost model validations
10.2.1: Add test for showing microposts on the user show page
10.2.1: Adding microposts to the user show page
10.2.1: A partial for showing a single micropost
10.2.1: Adding an @microposts instance variable to the user show action