Major refactor to toggle_display script
  previous script was hard coded to a single setup with my home desktop
  new script uses ruby to cycle between
    top 2 highest res monitors
    top 2 highest res monitors in reverse order
      previous left becomes new right, previous right becomes new left
    and the laptop display by itself
  also works with just laptop and 2nd monitor, performing the same cycling
Add arch update notification on startup
Add bundler aliases via ohmyzsh