Version 6.8.0
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Beantrader Latinum version 6.8 contains bug fixes and new features.

The most important changes are listed in this document.

### Studies
   * Added Donchian Channel indicator
   * Added ZigZag indicator
   * Added Keltner Channels indicator

### Datafeed
   * Added BTC Markets chart data feed. This data feed does not use
     streaming prices, it updates every 5 seconds

### Trade Feed
   * Added price tolerance parameter for aggregate trades by price
   * Added accumulation interval parameter for aggregate trades by time