Gillingham manager Mark Bonner is predicting League 2 to be wide open next season. With plenty of summer transfer business yet to be done across the division it’s hard to predict who will be the front-runners, although the bookies have installed Chesterfield as the early title favourites. The Gills are well-fancied, too, particularly after making some attacking additions that should help improve their goalscoring fortunes which have hindered them in recent seasons. The likes of MK Dons, Notts County and Doncaster Rovers should also be in the mix. Bonner said: “I think people will look and say …