Add activated_at column to posts table
Update active scope on Post to sort by activated_at asc, update posts_controller_spec.
:
Set activated_at when creating Post if active. Add tests for activated_at.
Move setting activated_at into a after_save on Post model
Add spec for correct activated_at behavior when updating Post
Add tests on Post model for set_activated_at after_save
Add Posted On column on admin pages/index.
Order Posts by created_at desc
Display Posted On details on post form and show
Display Posted on details on user facing Posts index and show
Merge pull request #4 from Steveo1485/feature/activated_at

Feature/activated at