Arg

Changed

• Refactor package using arg
  • --exclude no longer wipes out the default exclude, use --no-exclude if this behavior is wanted
  • --poll must be provided a number
• Removes FORCE_COLOR override in favor of TTY detection
  • If this breaks functionality, we can add this back as needed, please file an issue!
• Main package exports an onchange function which returns a function to "close"
  • The main export expects only one argument - options