changing a for-loop to count up instead of down; changes in test output are expected
simplifying a for-loop in 'SchulzeBeatpaths()'
simplifying a for-loop in 'SchulzeBeatpaths()'
further simplifying 'SchulzeBeatpaths()'
last-for-now clean up of 'SchulzeBeatpaths()'; not sure when/how I will be back, though