title: Does Facebook Android SDK session give short or long term Token?
body: <p>Does <code>session.getAccessToken()</code> give a short or long term access token?</p>
  
  <p>And more importantly if short term is it a good idea to call</p>
  
  <pre><code>GET /oauth/access_token?
     client_id={app-id}
     &amp;client_secret={app-secret}
     &amp;grant_type=client_credentials
  </code></pre>
  
  <p>from the android app?</p>