All changes in this release were provided by contributors!
- Many SDL2 improvements and corrections @vanfanel
- Overlay support rewrite @vanfanel
- Threading improvements @vanfanel
- Fixed aspect ratio when starting in fullscreen @vanfanel
- Added scoreboard overlay for Dragon's Lair @vanfanel
- Improved overlay transparency @lmerckx
- Option to disable SDL hardware acceleration @DavidGriffith
- updated SDL2 keycodes @OzFalcon
- usb scoreboard interface @mcspaeth