Added 'sidebar' content block and make login form part of Auth plugin

Change-Id: Iab9ef73bce0960336aa3821e6f4f390e96dca574
diff --git a/t/plugin/auth.t b/t/plugin/auth.t
index ff5988e..a81c06f 100644
--- a/t/plugin/auth.t
+++ b/t/plugin/auth.t
@@ -42,7 +42,9 @@
   ;
 
 $t->get_ok('/')
-  ->element_exists('form[action=/user/login] input[name=handle_or_email]');
+  ->status_is(200)
+  ->element_exists('form[action=/user/login] input[name=handle_or_email]')
+  ;
 
 $t->post_ok('/user/login' => form => { handle_or_email => 'test', pwd => 'fail' })
   ->status_is(302)