HTML version and controller changes

This update finally fixes the web/HTML version on itch.io. When I last compiled there was an issue with the game engine and HTML exports. This was fixed and the game now loads on the https://chaslinux.itch.io/sumash web page.

Controller support has changed (except for the Windows version as I currently don't have a Windows PC). The START button on the controller now acts as ENTER for the "Cast of Characters" screen and the B button acts as fire rather than right or left trigger. While right and left trigger are often used for fire, I found they felt a bit too "soft." Also, in the HTML version making B the fire key puts it closer to the rocker controls, making it a bit easier to play.

I'm planning on installing Windows on a laptop this afternoon to address the missing Windows version. The old version (1.9) still can be downloaded and played until I get the laptop set up. It's a bit more work getting all the tools installed on Windows, but I should have a version up by this evening.

Linux users may need to set the execute bit on the AppImage in order to play:

chmod ugo+x Sumash-1.10.AppImage