title: xcode compile flags to create two apps
body: <p>To what extent can I use compile flags. I want to use the same xcode project but compile two apps. The differences are:</p>
  
  <ul>
  <li>The bundleID </li>
  <li>The Provisioning Profile used</li>
  <li>The URL that the code uses to access it's services</li>
  <li>The app name (the test app has 'Test' appended to it)</li>
  </ul>