Conpherence - allow for public rooms to really work

Summary: Fixes T8102. This makes public rooms actually work. Also lets users see the search listings page so they can wander into all public rooms without logging in.

Test Plan: As logged out user, visited ZXX and ZYY. ZXX was public, so I could see it and had a little "Login to Participate" button in the bottom. ZYY was not public so I was prompted to login. Back on ZXX I clicked the Conpherence crumb and got a sensible UI where most links prompted me to login. CLicked "search" and saw listings for all public rooms.

Reviewers: epriestley, chad

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T8102

Differential Revision: https://secure.phabricator.com/D12778

src/applications/conpherence/controller/ConpherenceListController.php

@@ -25,6 +25,10 @@ final class ConpherenceListController extends ConpherenceController {
     return $mode;
   }
 
+  public function shouldAllowPublic() {
+    return true;
+  }
+
   public function handleRequest(AphrontRequest $request) {
     $user = $request->getUser();
     $title = pht('Conpherence');