Convert AphrontTableView to safe HTML

Summary:
Lots of killed `phutil_escape_html()`.

Done by searching for `AphrontTableView` and then `$rows` (usually) backwards.

Test Plan:
Looked at homepage.

  echo id(new AphrontTableView(array(array('<'))))->render();

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4884

src/applications/countdown/controller/PhabricatorCountdownListController.php

@@ -46,7 +46,7 @@ final class PhabricatorCountdownListController
           'Delete');
       }
       $rows[] = array(
-        phutil_escape_html($timer->getID()),
+        $timer->getID(),
         $handles[$timer->getAuthorPHID()]->renderLink(),
         phutil_tag(
           'a',