How-to use GeoJSON/WFS
By default GeoMoose will use GML to communicate with a WFS server.
To have GeoMoose use JSON, it needs to have the outputFormat <param>
set
to a JSON mime-type:
<map-source name="my-wfs" type="wfs">
...
<param name="outputFormat" value="application/json" />
...
</map-source>