v2.4

• Added ttydview, tool to parse TTYD map /d data into OBJ files
• rellink now uses Python 3
• ttydasm now has experimental compile-time support for the Super Paper Mario branch; activate with preprocessor define GAME_SPM
• Updated rel to work using the new elf2rel syntax
• Add GameCube keyboard driver to rel
• Fix elf2rel removing necessary sections if they're empty (this fixes the undefined references to the .ctors and .dtors section errors when building)