Made sure that filestreams are closed correctly
Added some error handling to saving games, can not overwrite saves anymore
Moved loading games to GameActivity, so that there is no need for a global GameBoard object or an Application class
Rewrite LoadDialog, it now has a proper layout.
Implemented deleting saves.
The layout has a severe BUG with the scrolling.
Fixed a bug where scrolling load games would make the dialog buttons disappear.
Remembered to increment version number.
Changed the look of scratched tiles, easier on ignore