Also some Hadoop utility scripts, and wrappers to run jobs we care about
for testing or whatever.
These don't have the password login Unni had done in expect. Right now
we don't need that. If we need that, we can add it as the "frontend"
script and then use these for the rest.
The other part of these scripts is the part that bakes the hadoop image,
in ../setup-capnet-basic.sh .