v2.14/2.14b

• new options:
  • add autosave to [Save/Load/Fallback] menu
  • 240p/288p as fallback is now available
  • new debug screen incl. pin check for DIY builds
• fixes/misc:
  • scanline calculation by color is now default
  • output video if no video input is being detected
  • add a simple controller detection algorithm
  • reorganize LED usage