Some improvements

Enable loops over an arbitrary parameter (not only m)
Keep the range of the y axis fixed (for movie)
Files: 
simviz1.py  : run simulation and visualization
simviz2.py  : additional option for yaxis scale

loop4simviz1.py : m loop calling simviz1.py
loop4simviz2.py : loop over any parameter in
                  simviz2.py and make movie

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