2.8

• Rework resolve_config_file()
• Rework line_pulse_duration_option_parse()
• Rework rs485_parse_config()
• Clean up file descriptor name shadowing
• Add missing header guard
• Upgrade inih subproject
• Remove options --response-wait, --response-timeout
• Add lua exit(code)
• Add timeout feature to expect()
• Add lua expect(string)
• Add lua send(string)
• Add lua modem_send(file,protocol)
• Fix xymodem error print outs
• Rework x/y-modem transfer command
• Update docs
• Cleanup options
• Add independent input and output mode
• Fix file descriptor handling on MacOS
• Add tty line configuration script API
• Add ONULBRK mapping flag
• Add Lua scripting feature
• Invert line states to reflect true electrical level
• Add support for disabling prefix key handling