title: No getApiClient() in google play game services BaseGameUtils
body: <p>I've just added google play services leaderboard to my game, but there are some problems. I can't start leaderboard activity. Here is my code</p>
  
  <pre><code>startActivityForResult(Games.Leaderboards.getLeaderboardIntent(getApiClient(), "leaderboard_id"), 5000);
  </code></pre>
  
  <p>problem is that there isn't any getApiClient() method. Any idea?</p>