Microposts
Test for protectedness of user_id
Micropost-user associations
Micropost factory
Retreive microposts in reverse creation order by default
User's microposts destroyed with user
Max micropost length 140
Microposts on user page
Pagination for microposts
Don't show list if empty
Show micropost creation date
Populate sample microposts
Test that other user's posts don't appear
Styling for microposts
Layout fix - microposts next to, not below, user name
Must be signed in to create/destroy microposts
Alternate home page for signed in users - should have form to post.
Empty post creation failure
Error display for micropost creation
Generate user for valid signup from factory