Fixed bug that was also fixed in 439375c2b67ff7b4b61c112bfb888757232f013d - to do with calculating levels for a gameboard (it started at 0 and should start at 1).
Fixed bug that was also fixed in 439375c2b67ff7b4b61c112bfb888757232f013d - to do with calculating levels for a gameboard (it started at 0 and should start at 1).

ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app