(issue869) Add spacer for multiline items This works because single line values now have a height of 15 + spacer (which amounts to the 20 it was before). Multiline columns can have any height as this is generated automatically on breaks to show all text. We now add +5 there so that they have at least some space.

<?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>