Clean up Login, Responsive Forms

Summary: Removes the panel-view on login and adds additonal responsive styles for mobile forms.

Test Plan: View in mobile browser, resize page.

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4530

src/applications/auth/controller/PhabricatorLoginController.php

@@ -282,6 +282,7 @@ final class PhabricatorLoginController
 
     $panel = new AphrontPanelView();
     $panel->setWidth(AphrontPanelView::WIDTH_FORM);
+    $panel->setNoBackground();
     foreach ($forms as $name => $form) {
       $panel->appendChild('<h1>'.$name.'</h1>');
       $panel->appendChild($form);
@@ -290,7 +291,7 @@ final class PhabricatorLoginController
 
     $login_message = PhabricatorEnv::getEnvConfig('auth.login-message');
 
-    return $this->buildStandardPageResponse(
+    return $this->buildApplicationPage(
       array(
         $error_view,
         $login_message,
@@ -298,6 +299,7 @@ final class PhabricatorLoginController
       ),
       array(
         'title' => 'Login',
+        'device' => true
       ));
   }