tio v3.4

• Update configuration output

• Clean up script run interaction text

• Fix unbounded writes

• Add history and editing feature to line input mode

  Use up and down arrow keys to navigate history.

  Use left and right arrow keys to move cursor back and forth.

  We try mimic the behaviour of GNU readline which we can not use because we also need to react to key commands.

• Reuse socket address

  To avoid having to wait for socket timeout when restarting server.

• Fix line input mode

  Fix so that ABCD are no longer ignored.

• Make sure ICRNL, IGNCR, INLCR take effect

• Include correct header for poll()

• Add group write permission to xymodem received file

• Fix missing open() flags in xymodem_receive()

• Show current mappings in the configuration printout

• Use ctrl-t m to change mappings interactively

• Prompt for Lua script or shell command in interactive session

• Added support to receive XMODEM-CRC files from the connected serial port