title: newSpellCheckerSession always returns null
body: <p>I'm trying to hook into the built in Android spell checking service on my Note tablet.  When I call </p>
  
  <pre><code>    final TextServicesManager tsm = (TextServicesManager) getSystemService(
              Context.TEXT_SERVICES_MANAGER_SERVICE);
      spellCheck = tsm.newSpellCheckerSession(null, null, this, true);        
  </code></pre>
  
  <p>spellCheck is always null.  The device is 4.1.2, so it ought to at least have the word suggestion capability.  Has anyone used this service directly to give me some pointers?  The web is very sparse about this, since it usually comes through the keyboard.</p>