7-2 removed insecure and allowed certain posts to write
7-3 denied access to new posts when not logged in
7-4 loading screen while logging in
7-5 only show new link if logged in
7-6 use method for submit
7-7 sort posts by submitted timestamp
7-5-1 demonstrate order that posts appear
8-1 edit post form
8-2 added basic permsions to check post's owner