(issue1620) Print the real official Q value instead of the first The assumption Q=Q becomes false if there are more then one waterlevels to be exported and only one of them has an official value.

<?xml version="1.0" encoding="UTF-8" ?>
<datacage>
    <user>SA</user>
    <password/>
    <driver>org.h2.Driver</driver>
    <url>jdbc:h2:${artifacts.config.dir}/../datacagedb/datacage</url>
</datacage>