Add hovercard on/off option to PhabricatorFeedStory

Summary: Defaults hovercards off everywhere feed stories are shown. I tried to find where to put this in so /feed/ could display them, but got horribly lost and confused in SearchQueryLandView

Test Plan: turn hovercards on and off, inspect elements.

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: Korvin, aran

Differential Revision: https://secure.phabricator.com/D6757

src/applications/project/controller/PhabricatorProjectProfileController.php

@@ -137,6 +137,7 @@ final class PhabricatorProjectProfileController
 
     $builder = new PhabricatorFeedBuilder($stories);
     $builder->setUser($this->getRequest()->getUser());
+    $builder->setShowHovercards(true);
     $view = $builder->buildView();
 
     return hsprintf(