   -  rel: 20.09.2022, Major Update
   -  sum: added clipboard access on desktop linux
           and mac. copy to clipboard is now faster.
           detail improvements and bugfixes.
   -  add: sfk fromclip/toclip on Macintosh,
           through the pbcopy/pbpaste tool.
   -  add: sfk fromclip/toclip on desktop linux,
           through the xclip tool.
   -  add: "if" now accepts text "1" or "0" to execute
           or skip the following command or block.
   -  add: sfk incvar, decvar to increase or decrease
           the value of a numeric variable.
   -  add: sfk unzip -asdir x renames the top level
           folder from a zip file on extraction.
   -  add: sfk ping: option -noterm to allow writing
           of ping output to a file.
   -  add: sfk make-random-file: option -char c to 
           create a file filled with character c
   -  add: sfk load: option -force to continue script
           on missing file
   -  add: sfk calc: -hex to print hexadecimal result.
   -  add: sfk sft ... putx: alias for put -setexec=*
   -  add: option -maxsub=n to include up to n subdir
           levels in commands like list.
   -  add: sfk knxsend, knxdump: more data types.
   -  opt: sfk toclip: massive performance improvement
           with larger data, if -trim etc. options 
           are not used.
   -  opt: sfk fromclip: performance improvement
           if following command can receive binary,
           like xed or xex.
   -  chg: sfk toclip: now receives binary and text data,
           to avoid unwanted conversions.
   -  fix: hexfind: -maxdump was ignored in sfk ose.
   -  fix: sfk batch vedit.bat: join of videos now
           works with ffmpeg 4.4.1 or higher
   -  fix: sfk ... +hexdump -offlen too much output.
   -  fix: sfk data: symbols like $1foo did not reuse.
   -  fix: make-random-file: sometimes added LfLf
           instead of just CrLf line endings.
   -  doc: more details on -deacc search option.
   -  doc: alias: xclip example for windows.
