What's New:
- fix some new compiler complaints
- debugger shows all 32MB of AMS (so much for a temp hack ;) )
- Drag-and-drop carts remember their 'auto' status on cold reset, allowing carts made larger during development to correctly reload
- more debug about how Classic99 auto-detects the cart type
- make sure to always check for PC99 cartridge file types
- Horizon RAMdisk support (unsupported, so not in manual)