Upgrade Ruby version to 2.0.0; switch from .rvmrc to .ruby-version/.ruby-gemset files
Make only index & show actions public; add an 'admin' namespace
Generate new controller for post administration
Move administration views to live under admin controller
Update tests
Move admin-only actions from posts controller to admin/posts
Update new/edit form
Include 'PostHelper' in admin/posts controller so we can use post_path_with_slug function
Fix path for 'delete' link