title: Is com.google.android.c2dm.intent.REGISTRATION deprecated?
body: <p>Short version: is the intent <code>com.google.android.c2dm.intent.REGISTRATION</code> still used at all or has it been completely deprecated by GCM?</p>
  
  <p>Longer version: Google's <code>gcm-demo-client</code> declares this intent in its filter, however, if I follow the same procedure, I get a valid registration id when I call <code>gcm.register()</code> and <em>then</em>, my broadcast receiver receives an additional registration id because of the REGISTRATION filter, and this second registration id is bogus (I can't send any notification to it).</p>
  
  <p>At this point, I'm considering removing the <code>REGISTRATION</code> filter (and keeping just <code>RECEIVE</code>) but I want to make sure I'm not missing something important in the protocol.</p>