v.6.13.00

A moderate release

DISCUS
mmc Added an option to control amount of output during / after mmc loop
powder Added a Pearson Type VII profile function
stack BUG FIX: Improved atom modulo function.
Corrected possible crash if 2nd layer had more atoms than previous.
General
Added a Pearson Type VII profile function
KUPLOT
match Extended 'match mix' to xyz files
help Corrected entry for 'match' command