Macro - allow view controller to be viewed publicly

Summary: Fixes T5735, setting up Phacility for huge financial success.

Test Plan:
opened up Safari - who logs in with Safari anyway? - and could still view a macro
could also view the list of macros

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T5735

Differential Revision: https://secure.phabricator.com/D10170

src/applications/macro/controller/PhabricatorMacroViewController.php

@@ -9,6 +9,10 @@ final class PhabricatorMacroViewController
     $this->id = $data['id'];
   }
 
+  public function shouldAllowPublic() {
+    return true;
+  }
+
   public function processRequest() {
     $request = $this->getRequest();
     $user = $request->getUser();