Updated the build to fix issues in Safari

I finally got around to fixing problems in Safari with using localStorage to save games. Unfortunately, the solution was to disable game saves for Safari, so you have to complete the game without closing the browser window. The same is true for other browsers if you disable "third-party cookies", which also affects localStorage (where we store game progress).

I hope to find more time in the future to come up with a better solution that will make savegames work in any browser.