Move PhabricatorHovercard to PHUIHovercard

Summary: No UI changes, just some search and replace for UI consistency.

Test Plan: Test person and object hovercards still work. UIExamples too.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D15172

src/applications/phid/PhabricatorObjectHandle.php

@@ -276,7 +276,7 @@ final class PhabricatorObjectHandle
   }
 
   public function renderHovercardLink($name = null) {
-    Javelin::initBehavior('phabricator-hovercards');
+    Javelin::initBehavior('phui-hovercards');
 
     $attributes = array(
       'sigil' => 'hovercard',