Fix trollstalker to new metadata.

Signed-off-by: Martin Raspaud <martin.raspaud@smhi.se>
Add a working dir for modis gbad processing.

Signed-off-by: Martin Raspaud <martin.raspaud@smhi.se>
Receive RDRs from any publisher.

Signed-off-by: Martin Raspaud <martin.raspaud@smhi.se>