Hand-crafted CKAN because the Airships are curse-only as for now

Asked the current maintainer, JewelShisen, for permission via PM on the forums.

Also, on the first page of the mod thread ( http://forum.kerbalspaceprogram.com/threads/53961 ), Jewel talks about distribution sites in addition to curse, so maybe we can convert the ckan file to a proper netkan one at some upcoming time.