1) Fix the English of a comment.
2) Remove a number of int-to-double compares:
Make "steps" an integer variable (the number of steps).
Rename the old double "steps" variable to "stepsInRange". This gives
a non-integer number of steps and is necessary to calculate the
correct step size
3) Replace a "x = x/y" by a "x /= y" construct.
4) Remove an unnecessary if clause.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>