Update fnAddTr.js - Fix - Showing invisible columns

Showing not visible columns and returning the result of fnAddData, also fixes the problem described at https://github.com/DataTables/Plugins/pull/24

api/fnAddTr.js

@@ -23,9 +23,19 @@ $.fn.dataTableExt.oApi.fnAddTr = function ( oSettings, nTr, bRedraw ) {
     }
      
     var aData = [];
+    var aInvisible = [];
     for ( var i=0 ; i<nTds.length ; i++ )
     {
         aData.push( nTds[i].innerHTML );
+        if (!oSettings.aoColumns[i].bVisible)
+        {
+            aInvisible.push( i );
+        }
+    }
+    
+    for ( var i = (aInvisible.length - 1) ; i >= 0 ; i-- )
+    {
+        nTds[aInvisible[i]].remove();
     }
 
     /* Add the data and then replace DataTable's generated TR with ours */