Policy, Status in PHUIHeaderView

Summary: The adds the ability to set 'properties' such as state, privacy, due date to the header of objects.

Test Plan: Implemented in Paste, Pholio. Tested various states.

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: Korvin, aran

Differential Revision: https://secure.phabricator.com/D7016

src/applications/countdown/controller/PhabricatorCountdownViewController.php

@@ -41,7 +41,7 @@ final class PhabricatorCountdownViewController
         id(new PhabricatorCrumbView())
           ->setName("C{$id}"));
 
-    $header = id(new PhabricatorHeaderView())
+    $header = id(new PHUIHeaderView())
       ->setHeader($title);
 
     $actions = $this->buildActionListView($countdown);