Fix dead column link and provide more milestone UI context

Summary:
Fixes T10287. Ref T10286.

  - Link stuff properly.
  - Generally, show "Parent (Milestone)" instead of "Milestone".
  - This probably doesn't get 100% of `getName()` -> `getDisplayName()` swaps, but we can get those as we catch them.

Test Plan: See T10286. Also clicked stuff.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10286, T10287

Differential Revision: https://secure.phabricator.com/D15189

src/applications/project/controller/PhabricatorProjectProfileController.php

@@ -115,7 +115,7 @@ final class PhabricatorProjectProfileController
     return $this->newPage()
       ->setNavigation($nav)
       ->setCrumbs($crumbs)
-      ->setTitle($project->getName())
+      ->setTitle($project->getDisplayName())
       ->setPageObjectPHIDs(array($project->getPHID()))
       ->appendChild(
         array(