-format introduced to opt between "%20.14f" and "%20.14g" format
for printed/scanned energy/gradient values. It defauls to the former
so that bc can also be used for the energy/gradient evaluation.
-version prints the program version
code fixes and improvemnets
v1.1 (2018.03.23)
fixed a bug concerning I/O from the pipe, no strange random behaviour any more
the -fdf option in gradient methods is now optional
code improvements
v1.0 (2018.03.16)
Simplex, Conjugate Gradient and BFGS algorithms available