Get rid of HorizontalLayout in MapOutputTab and use manual resizing. The OpenLayers Map widget is now resized and positioned manually by a ResizeHandler method. The automatic HorizontalLayout was obviously broken in combination with the OpenLayers widget. This should fix various layout issues with the OpenLayers Map.

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