Now, user must log in to view countries. The user will see only their own countries and the selections they've made, and countries will be colored (although the color scheme still needs to be standardized). There is a new Welcome controller for the landing page. When countries are selected, the county's status is updated in the database -- I fixed the AJAX request so that it uses POST rather than GET, and tells rails to treat it as a PUT request by adding a method attribute in the data that the request is sending.