implement feature and requirement details

htdocs/features.js

@@ -1,5 +1,24 @@
 $(function(){
+    var converter = new showdown.Converter();
     $.ajax('/api/features').done(function(data){
-        $('body').html(JSON.stringify(data));
+        $table = $('table.features');
+        $.each(data, function(name, details) {
+            requirements = $.map(details.requirements, function(r, name){
+                return '<tr>' +
+                           '<td></td>' +
+                           '<td>' + name + '</td>' +
+                           '<td>' + converter.makeHtml(r.description) + '</td>' +
+                           '<td>' + (r.available ? 'YES' : 'NO') + '</td>' +
+                       '</tr>';
+            });
+            $table.append(
+                '<tr>' +
+                    '<td colspan=2>' + name + '</td>' +
+                    '<td>' + converter.makeHtml(details.description) + '</td>' +
+                    '<td>' + (details.available ? 'YES' : 'NO') + '</td>' +
+                '</tr>' +
+                requirements.join("")
+            );
+        })
     });
 });