* Added ability to specify IP address of remote Holidays to led_scroller.py
  and holiscreen.py.
* holiscreen orientation works now for both vertical and horizontal when
  using switchback.
* FIXME comment added to led_scroller
* Updated holibeats to support IP address of remote Holiday
* Updated holibeats to support switchback mode
* Added workaround for multiple Holidays all rendering at once, as
  per holiscreen.py
* Added ability to turn off autoranging display if you want.
* Added re-balancing of autoranging so if you play something loud,
  then quiet, the max value will slide downwards and the display
  will still be interesting.