v.6.17.01

Small update, predominantly moderate BUG FIXES

GENERAL
general on Windows, a parallel process might have crashed due to timing issues
general added a timer command to the command language
DISCUS
mmc The mmc initial reported wrong values for angles.
powder/output The periodic boundary treatment for PDF did not work.
powder/output Added option for partial PDFs via Debye-Scattering-Equation
pdf The partial pdf calculation in the old pdf menu did not work.
rmc RMC needed fixes.
super Ongoing development
REFINE
refine BUG FIX Failed for differing "points:" number.