Dynamic robot.txt file
 Changes to be committed:
   (use "git reset HEAD <file>..." to unstage)

	modified:   app/controllers/pages_controller.rb
	new file:   app/controllers/robots_controller.rb
	new file:   app/views/robots/allow.text.erb
	new file:   app/views/robots/disallow.text.erb
	modified:   config/routes.rb
	deleted:    public/robots.txt