Don't require admin privileges to verify email addresses

Summary: Fixes T2821. In D5386 we locked most of this app down, but missed one controller which needs to be accessible by non-admins (this controller should probably be in some other app, like auth, in the long term).

Test Plan: @shanemhansen confirmed this fixed his install

Reviewers: chad, AnhNhan

Reviewed By: chad

CC: shanemhansen, aran

Maniphest Tasks: T2821

Differential Revision: https://secure.phabricator.com/D5422

Author: epriestley

src/applications/people/controller/PhabricatorEmailVerificationController.php

@@ -9,6 +9,10 @@ public function willProcessRequest(array $data) {
     $this->code = $data['code'];
   }
 
+  public function shouldRequireAdmin() {
+    return false;
+  }
+
   public function shouldRequireEmailVerification() {
     // Since users need to be able to hit this endpoint in order to verify
     // email, we can't ever require email verification here.