Add bookmarks controller, update routes and blank bookmark#index view
Generate CreateBookmarks migration, run rake db:migrate
Implement index action for bookmarks controller
Implement new action for bookmarks controller and new.html.erb with form for creation
Add create method to bookmarks controller
Add show method to bookmarks control and show view
Add field validation for Bookmark model
Add edit and update actions to bookmarks controller
Add delete action to bookmarks controller
Add _editdelete partial to simplify layouts
Add before_action to simplifier controller action code
Add URL shortening display; actual linking functionality not yet implemented
Add URL shortener and visit count
Lose to CSS as usual, but complete functional URL shortener with counter