bigger update now: http://mogsta.com/btc/

- now using trading data since 2013-04-01 (my db actually contains trading data since mid 2011, i have to figure out some performance issues when displaying huge amounts of data.. :S)
- new live updating price chart (from highchart.com)
- barometer displays volume for the time range displayed in the chart
- time interval buttons no longer sets "show last X trading volume", now they're for setting the time interval used in the chart