michal made me do it. add the build_cloud_with_hosts option to the rest of the testdir_single_jvm tests
so they can all be run with -cj <config json> option to dispatch to other machines (they will run however the config says, so can be multi jvm). I put the same args from build_cloud to build_cloud_with_hosts, to override the default config, just to be sure it's the same build_cloud as it would do for localhost (like on your laptop)
a couple tests I hadn't pushed also.