fixed some issues with the "next" function that were messing up switching between figures as well as some fromaxis sympy issues for 0D data
fixed some issues with the "next" function that were messing up switching between figures
as well as some fromaxis sympy issues for 0D data

jmfranck/pyspecdata,jmfranck/pyspecdata,jmfranck/pyspecdata,jmfranck/pyspecdata