Station display improvements

I now have the real-time station display working almost perfectly. It can be read on my Android running Nook from across the room, indicates which items changed since the last refresh, along with increase/decrease indicators, and the old value. Only thing missing at this point is wind direction, but I get the information in different formats from WeatherUnderground and my VoltBarn Sensor Packs, so need to do a bit of parsing/normalization. But, this does what I wanted to get done with the Nook, a usable weather display station for all the stations I have scattered about in one spot, and that spot can be anywhere from a house to the pub to the train. Plus, with the multiple views, you can see the consolidated info for all the added stations, an attractive set of gauges, or a highly readable display station.