Use javelin_tag(), not phutil_tag(), to render revision blame tooltips properly

Summary: Depends on D19310. Ref T13105. The "meta" value was not populating correctly because this used `phutil_tag()`.

Test Plan: Will verify on `secure`.

Maniphest Tasks: T13105

Differential Revision: https://secure.phabricator.com/D19311

src/applications/diffusion/controller/DiffusionBlameController.php

@@ -158,7 +158,7 @@ final class DiffusionBlameController extends DiffusionController {
       );
 
       if ($revision) {
-        $revision_link = phutil_tag(
+        $revision_link = javelin_tag(
           'a',
           array(
             'href' => $revision->getURI(),
@@ -171,7 +171,6 @@ final class DiffusionBlameController extends DiffusionController {
           ),
           $revision->getMonogram());
 
-
         $info = array(
           $info,
           ' / ',