WIP Details pane + contributor profiles

Adds a 3-pane layout option for showing details, as well as a dashboard
sub-route for showing contributor details in the new details pane.

tests/unit/controllers/dashboard-test.js

@@ -0,0 +1,29 @@
+// import { isEmpty, isPresent } from '@ember/utils';
+// import { module, test } from 'qunit';
+// import { setupTest } from 'ember-qunit';
+// import Contributor from 'kredits-web/models/contributor';
+//
+// module('Unit | Controller | index', function(hooks) {
+//   setupTest(hooks);
+//
+//   let addFixtures = function(controller) {
+//     [
+//       { github_username: "neo", github_uid: "318", totalKreditsEarned: 10000 },
+//       { github_username: "morpheus", github_uid: "843", totalKreditsEarned: 15000 },
+//       { github_username: "trinity", github_uid: "123", totalKreditsEarned: 5000 },
+//       { github_username: "mouse", github_uid: "696", totalKreditsEarned: 0 }
+//     ].forEach(fixture => {
+//       controller.get('kredits.contributors').push(Contributor.create(fixture));
+//     });
+//   };
+//
+//   test('doesn\'t contain people with 0 balance', function(assert) {
+//     let controller = this.owner.lookup('controller:index');
+//     addFixtures(controller);
+//
+//     let contributorsSorted = controller.get('contributorsSorted');
+//
+//     assert.ok(isPresent(contributorsSorted.findBy('github_username', 'neo')));
+//     assert.ok(isEmpty(contributorsSorted.findBy('github_username', 'mouse')));
+//   });
+// });