I just pushed the latest openqa package update stable. That
package backports the changes to the asset download code I got
merged upstream, and one consequence of that is that we have
to use ISO_URL for downloading ISOs now, not ISOURL. So, we'd
better change that. Please review this ASAP so we don't wind
up with the packages updated on the prod boxes and the tests
stop working :)

You'll want at least openqa-4.3-17 to test this, before -17,
ISOURL was correct.

Update openqa to 4.3-17 or later, run the scheduler
for a compose you don't have downloaded yet, and make sure
the downloading works.