title: Does using GameKit / Game Center in your app increase its binary size?
body: <p>I'm looking to implement Game Center features into my iOS app; however, I'm not sure how much it will increase my application's binary filesize.  There seem to be a lot of features in GameKit which I won't be using because I only want to use achievements and leaderboards.  Is there a way to leave out the unused features at compile time?</p>
  
  <p>Thanks in advance!</p>