Redesign header menus and search

Summary:
Still lots to fix here, punting up since I'm running into a few roadblocks.

TODO:
[] Sort Personal/Global correctly
[] Quicksand in Help Items correctly on page changes

Test Plan: Verify new menus work on desktop, tablet, mobile. Test logged in menus, logged out menus. Logging out via a menu, verify each link works as expected. Help menus get build when using an app like Maniphest, Differential. Check that search works, preferences still save.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T12107

Differential Revision: https://secure.phabricator.com/D17209

src/applications/help/controller/PhabricatorHelpDocumentationController.php

@@ -31,7 +31,6 @@ final class PhabricatorHelpDocumentationController
       $list->addItem(
         id(new PHUIObjectItemView())
           ->setHeader($item->getName())
-          ->setWorkflow($item->getWorkflow())
           ->setHref($item->getHref()));
     }
 

src/applications/help/extension/PhabricatorHelpMainMenuBarExtension.php

@@ -1,70 +0,0 @@
-<?php
-
-final class PhabricatorHelpMainMenuBarExtension
-  extends PhabricatorMainMenuBarExtension {
-
-  const MAINMENUBARKEY = 'help';
-
-  public function isExtensionEnabledForViewer(PhabricatorUser $viewer) {
-    return true;
-  }
-
-  public function buildMainMenus() {
-    $application = $this->getApplication();
-    if (!$application) {
-      return array();
-    }
-
-    $viewer = $this->getViewer();
-    $help_links = $application->getHelpMenuItems($viewer);
-    if (!$help_links) {
-      return array();
-    }
-
-    $help_id = celerity_generate_unique_node_id();
-
-    Javelin::initBehavior(
-      'aphlict-dropdown',
-      array(
-        'bubbleID' => $help_id,
-        'dropdownID' => 'phabricator-help-menu',
-        'local' => true,
-        'desktop' => true,
-        'right' => true,
-      ));
-
-    $help_name = pht('%s Help', $application->getName());
-
-    $help_item = id(new PHUIListItemView())
-      ->setIcon('fa-book')
-      ->addClass('core-menu-item')
-      ->setID($help_id)
-      ->setName($help_name)
-      ->setHref('/help/documentation/'.get_class($application).'/')
-      ->setAural($help_name);
-
-    $view = new PHUIListView();
-    foreach ($help_links as $help_link) {
-      $view->addMenuItem($help_link);
-    }
-
-    $dropdown_menu = phutil_tag(
-      'div',
-      array(
-        'id' => 'phabricator-help-menu',
-        'class' => 'phabricator-main-menu-dropdown phui-list-sidenav',
-        'style' => 'display: none',
-      ),
-      $view);
-
-    $help_menu = id(new PHUIMainMenuView())
-      ->setOrder(200)
-      ->setMenuBarItem($help_item)
-      ->appendChild($dropdown_menu);
-
-    return array(
-      $help_menu,
-    );
-  }
-
-}