• Add changelog (starts from commit 48ce74).
• Add dual color printing support:
  • Add red color to vector objects.
  • Add red/black threshold post-processing.
• Use single PrintStart/PrintEnd session for multi-page printing.
• Fix print progress calculation.
• Display more characteristics at the printer info menu.
• Fix status poll not stopped sometimes.
• Fix version detection for non-very-old printer models.
• Fail on connecting to a non-printer port.
• Add send progress (on printing).
• Printer menu rework:
  • Strings are i18n now.
  • Menu now display most important things.
  • Details moved to separate menu.
  • RFID usage progress bars.
  • RFID paper type and dimensions (for modern printers).
  • Sound settings sliders.
• Add datetime duration parsing (example: {dt+3d}, {dt-3h}, {dt+1w|YYYY-MM-DD}).