BUG: refs #0361. Fix downloading of zips
BUG: refs #0361. Fix downloading of zips

We had newlines prepended and a warning added at the end of our zip file,
which was breaking the windows opener (and probably others too...)

jcfr/Midas,jcfr/Midas,jcfr/Midas,jcfr/Midas,jcfr/Midas,jcfr/Midas