Cbench - Scalable Cluster Benchmarking Code

add some whitespace in the output

adding a testset for the LLNL mpiGraph benchmark.

cbench_run_cmd() in cbench_functions was updated to
support a TEE_FILE variable that allows a job script
to have command line output 'teed' to the file indicated
by TEE_FILE. this was necessary so that the mpigraph_mpigraph.in
job template could tee the output to mpiGraph.out for post
processing by crunch_mpiGraph inside the job itself.

the TEE_FILE thing isn't my favorite thing, but with
all the piping/teeing already going on behind the scenes
in cbench_run_cmd(), it was the only workable way.

makefile tweak

comment tweak

double the timesteps in the rhodolong job

increase the big phdmesh binary number of steps by
a factor of 50 to run longer

update to environment dumping stuff

--nodebatch and --nodelist must be used together so
error out if they are not

Add framework for parallel Makes.

$MAKE_JOBS is set to 1 by default and to $JOBS if it is defined.

Add some parallel Make awesomeness.

The Cbench environment variable $MAKE_JOBS is set in make.def.

To use, set the environment variable $JOBS to whatever you want and $MAKE_JOBS
will be set to that value in make.def; if no $JOBS variable is specified, 1 is
the default value for $MAKE_JOBS.