title: Wrong Yes/No text using Android Resource String
body: <p>I am building a dialog in Mono for Android like this:</p>
  
  <pre><code>AlertDialog.Builder builder = new AlertDialog.Builder(Context);
  builder.SetTitle(Context.GetString(Resource.String.MyTitle));
  builder.SetMessage(Context.GetString(Resource.String.MyQuestion);
  //YES, not OK
  builder.SetPositiveButton(Android.Resource.String.Yes, new EventHandler&lt;DialogClickEventArgs&gt;((dlgSender, dlgEvt) =&gt; { doSomething();});
  builder.SetNegativeButton(Context.GetString(Android.Resource.String.No), new EventHandler&lt;DialogClickEventArgs&gt;((dlgSender, dlgEvt) =&gt; {    doSomethingElse();}));
  builder.SetNeutralButton(Context.GetString(Android.Resource.String.Cancel), 
                                           new EventHandler&lt;DialogClickEventArgs&gt;((dlgSender, dlgEvt) =&gt; {}));
  
  Dialog dialog = builder.Create();
  dialog.Show();
  </code></pre>
  
  <p>This brings up my question with three buttons: <strong>"Cancel, Cancel, Ok"</strong> whereas I expected to get <strong>"No, Cancel, Yes"</strong>. Is anything wrong with my code above or is there something wrong with Mono for Android here?</p>