add explicit signin route

app/router.js

@@ -74,6 +74,7 @@ Router.map(function() {
 
   this.route('first_sync');
   this.route('insufficient_oauth_permissions');
+  this.route('signin');
   this.route('auth');
   this.route('home');
   this.route('home-pro', { path: '/home-pro' });

app/routes/signin.js

@@ -0,0 +1,15 @@
+import TravisRoute from 'travis/routes/basic';
+
+export default TravisRoute.extend({
+  needsAuth: false,
+
+  renderTemplate() {
+    $('body').attr('id', 'auth');
+    return this.render('auth.signin');
+  },
+
+  activate() {
+    return this.auth.signIn();
+  }
+
+});