Fix: Hold the scrolling position if holding the draw position

* This fix was partly committed earlier by mistake [b7feaa2]
* The fix is simply to store the draw hold state and make use of it in
  the draw scroll callback.

.datatables-commit-sync

@@ -1 +1 @@
-0ebb60d6ae47e378a970b3a277f14ae09bce9c42
+014b64c0781cdf68073d51d5ca8e46a45425bbbd

media/js/jquery.dataTables.js

@@ -2003,11 +2003,14 @@
 			settings.aiDisplay = settings.aiDisplayMaster.slice();
 		}
 	
-		settings._drawHold = holdPosition;
 		if ( holdPosition !== true ) {
 			settings._iDisplayStart = 0;
 		}
 	
+		// Let any modules know about the draw hold position state (used by
+		// scrolling internally)
+		settings._drawHold = holdPosition;
+	
 		_fnDraw( settings );
 	
 		settings._drawHold = false;