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re-writing and formatting changes to make them more maintainable.  Also
re-worked command line handling to use Getopt::Std.

The problem is that "@TESTMODE@" is wrong! This becomes a string "0",
instead of the integer 0, and so "if ($TESTMODE)" breaks down.

Rob and I noticed that when we need to do maintainance to a node, its hard
to grab it when it gets freed before it gets taken again. So this will allow
admins to set up nodes so that when the current owner frees them, they
immediately are moved into another experiment. For instance, if I need to do
an upgrade on all the machines in the testbed, I can do:

sched_reserve testbed down pc1 pc2 pc3 [...] pc40

and it will immediately reserve any free nodes, skip any that are already
in testbed/down, and add an entry to the next_reserve table for any nodes
that are already reserved. Then nfree checks for entries in the next_reserve
table before it lets any nodes go (much like it does for the reloads table),
and moves them into the expt before it can get reserved again. So we can
guarantee that the next time a node is freed, it will be saved for us.

Note that this can also be useful to accumulate nodes for a large experiment,
since you can make sure you get them as soon as the current owner is done.

machines in the experiment. exports_setup runs on paper and queries
the DB, generating a set of export lines. That is sent over to
plastic, and piped into exports_setup.proxy, which generates a new
/etc/exports file and restarts mountd. All of the client setup scripts
have been changed to mount the project and user directories.

list of nodes for console_setup to avoid an ssh per node. Change the
sleep(1) in console_setup.proxy to a select(,,,0.25). Looks to be
about .25 seconds per node now, plus a constant time of 1.5 seconds.

and power control sharks correctly (a shelf at a time). We also feed the
new shark names to assign in the ptop file. Showgraph was also changed
to reflect db changes.

web output friendly. Less is more.

the testbed list.

script runs out of nalloc and nfree and figures out what project (group)
a node is in. It does an ssh over to plastic to run the other script
that does the actual work.

happens when tbprerun does its thing. Causes experiment creation to
stop, when using delay nodes.

Added pids, checks for experiment existence, and freeing all nodes in an experiment without naming them.