Changes since the last release:
- fixed joystick rotation axis causing unwanted movement (#80)
- fixed booting of disks inserted during startup under macOS (#82)
- fixed rogue No Disk error when saving from Legend of Eshan
- fixed missing error for incompatible MGT formatting attempts (#86)
- fixed no-disk formatting behaviour (#86)
- fixed debugger data target display for negative index offsets (#88)
- improved handling of DI;HALT state in debugger to reduce confusion
- improved portable version compatibility for Linux builds