TEST examples

# Smallest test (test1):
mpirun -np 1 ./amr --tasks 1 1 1 --size 2 2 2 --levels 0 --tsteps 1

# Smallest test with debugging statements (test1_debug):
mpirun -np 1 ./amr --tasks 1 1 1 --size 2 2 2 --levels 0 --tsteps 1 --debug

# Smallest test with default values passed same as test1:
mpirun -np 1 ./amr --tasks 1 1 1 --size 2 2 2 --threshold 0  --levels 0 --tsteps 1 --noisespacefreq 10 --noisetimefreq .25

# Generate VTK output
mpirun -np 8 ./amr --tasks 2 2 2 --size 3 3 3 --levels 3 --tsteps 1 --vtkout

# larger grid with VTK output
mpirun -np 8 ./amr --tasks 2 2 2 --size 9 9 9 --levels 3 --tsteps 1 --vtkout

# larger grid with ADIOS output
mpirun -np 8 ./amr --tasks 2 2 2 --size 9 9 9 --levels 3 --tsteps 1 --adios MPI