v.6.18.02

Moderate release,
mostly internal small bug FIXES, internal development for next large release.

Make sure you download the latest installations scripts from this release as:

Small typos had snug into
bbb_install_script.sh ; bbb_install_script_mac.sh

Renamed the Windows installation scripts to:
bbb_install_suite_Windows_WSL.bat
bbb_install_Windows_wsl.ps

GENERAL
'cd' The command accepts special directory names:
$HOME, $HOMEPATH, $WSL_DOC, $WSL
'fget' Improved the 'form:a' parameter
set Added a 'set author:names' command
macros Upon a error driven abort, the macro returns to the inital
directory from which the macro was started
DISCUS
import Added a flag:refine:yes", which will write the DISCUS refinement macros
read Improved reading of molecules, did not work in some space groups