Modernized documentation and removed obsolete files

[byteshiftlabs]

Summary

Updated project documentation to modern standards and removed obsolete legacy files that are no longer relevant in 2026.

Changes

Documentation

• README.md: Replaced plain text README with modern Markdown format

  • Removed outdated contact information (20-year-old postal address, invalid email format)
  • Updated GDB version references (removed mentions of GDB 6.x, now supports 6.x through 14.x)
  • Removed references to obsolete software (RHIDE, SETEdit from 1990s)
  • Modernized build instructions (safer PREFIX defaults, clearer structure)
  • Added proper sections for prerequisites, examples, and contribution guidelines

• CONTRIBUTING.md: Created comprehensive contribution guide

  • Defined coding standards: max 50-60 line functions, no magic numbers, no uninitialized variables
  • Documented naming conventions with good/bad examples
  • Added commit message format guidelines (past participle)
  • Included code quality principles and error handling requirements

Obsolete Files Removed

• .cvsignore files (CVS obsolete since ~2005, project uses Git)
• libmigdb.epr (unknown obsolete IDE project file)
• DJGPP.why renamed to DJGPP.why.obsolete (DOS-era content preserved for historical reference)

License Updates

• Updated FSF address in LICENSE and GPL-license (FSF moved in 2005)
• Updated FSF address in all source file headers
• No license changes - both GPLv2 license files preserved

Build System

• Added .gitignore for build artifacts (*.o, *.a, *.so)

Impact

• No functional code changes
• Improved developer onboarding with clear documentation
• Removed confusion from obsolete files
• Maintained full backward compatibility

Testing

• Documentation reviewed for accuracy
• Build system unchanged (only added .gitignore)
• All license files preserved