みんな大好きReveal。そのままコンパイルするとValidateで下のようなエラーが
Your app contains non-public API usage. Please review the errors, correct them, and resubmit your application.
The app references non-public symbols in Payload/(アプリのアーカイブファイル名).app/(アプリのアーカイブファイル名) name: UICreateCGImageFromIOSurface
If you think this message was sent in error and that you have only used Apple-published APIs in accordance with the guidelines, send the app’s nine-digit Apple ID, along with detailed information about why you believe the above APIs were incorrectly flagged, to appreview@apple.com. For further information, visit the Technical Support Information page at http://developer.apple.com/support/technical/.
リリース時だけ「Remove Reference」なりでプロジェクトから消してからリトライすればOK。