Sort calculation results of a historical discharge calculation based on their start date. Therefore, there are two new inner classes TimerangeItem and HistoricalTimerangeItem that wrap a W, Q, Timerange (and delta Q). WQTimerange and HistoricalWQTimerange now implement a sort() that return the results (TimerangeItem or HistoricalWQTimerangeItem) sorted by their start date.

<?xml version="1.0" encoding="UTF-8" ?>
<database>
    <user>SA</user>
    <password></password>
    <url>jdbc:h2:${artifacts.config.dir}/../artifactsdb/artifacts</url>
</database>