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/differential/controller/DifferentialDiffViewController.php

@@ -114,7 +114,7 @@ final class DifferentialDiffViewController extends DifferentialController {
       }
     }
 
-    $property_head = id(new PhabricatorHeaderView())
+    $property_head = id(new PHUIHeaderView())
       ->setHeader(pht('Properties'));
 
     $property_view = new PhabricatorPropertyListView();