Bug fix in NearestNeighbors().  double_sort() does not seem to work dispite being the same as in NR.  Replaced with quicksort()
Bug fix in NearestNeighbors().  double_sort() does not
seem to work dispite being the same as in NR.  Replaced
with quicksort()

glenco/SLsimLib,glenco/SLsimLib