What's New:
- Add SDL version check for mouse wheel event preciseX/preciseY fields.
- Multithreading performance improvements (probably most noticeable as lower CPU usage when using lots of debugger displays)
- UI library update - you'll have to recreate your window layout, sorry about this. I hope this won't happen again
- First pass emulation support for the upcoming Retro Hardware Advanced Digital Joystick Interface cartridge
- Fix various minor UI issues