   -  rel: 23.05.2020, Major Update
   -  sum: SFK is now again available for Mac OS/X, as a 64-bit binary.
           SFK for Windows is now more compatible with up-to-date compilers.
           Easier creation of file copy scripts, with improved script templates.
           Improved FTP/SFT clients. Mobile friendly web server.
           Improved batch support on linux. Many bug fixes.
   -  CHG: SFK for Windows: now uses the Visual Studio 2015 runtime
           also for 32-bit binaries (it always used it for the
           64 bit binaries). This may cause a one-time recopy of files
           with sfk copy/sync and sft cput, as the new runtime
           interprets file dates in daylight savings time different.
   -  CHG: SYNTAX CHANGE: sfk filter ++word1 ++word2 is deprecated.
           Use instead sfk filter -and+word1 -and+word2,
           or sfk filter "-+word1*word2" to search in given order.
           The "++" will be used in a future version to control
           command chaining data flow.
   -  CHG: SYNTAX CHANGE: script remarks starting like //text
           without any whitespace are now deprecated.
           sfk script, call, perline now require that "//" 
           remarks are followed by one space,
           to avoid ambiquities with //pathname UNC paths.
   -  FIX: sfk sel mydir +del a.txt deleted mydir files.
           now the parameter conflict produces an error.
   -  CHG: FTP/SFT CLIENT SYNTAX CHANGE: filenames containing
           whitespace like 'the dir/the file.txt' can no longer
           be typed as is, but must be surrounded by quotes "".
           this is because ftp/sft now allows to add another
           parameter, which is a different target filename.
   -  CHG: errors and warnings are now prefixed by the current
           sfk command name, to find script errors easier.
   -  chg: sfk batch: new example scripts. default is a small script
           with a simple file copy example. added option -full
           to create a large backup example script with different
           commands on the same file set.
   -  add: sfk ftp/sft put now supports a different remote file name.
   -  add: sfk ftp/sft get now supports a different local file name.
   -  add: sfk sft put: option -setexec to set executable flag
           on files when sending to a linux server.
   -  add: sfk webserv: mobile friendly layout
   -  add: script: empty parameters "" are now accepted the same
           way as option -noop (no operation), avoiding many
           unexpected syntax errors on optional input parameters.
   -  opt: sfk big, sfk late: massive performance improvement
           when listing many files.
   -  chg: unknown options now produce an immediate error with
           most commands, instead of a delayed or no error.
   -  chg: command chain no longer stops at +view.
   -  add: script -anyparms, alias for script -literal.
   -  chg: sfk clipsrc now also expands % to %%.
   -  chg: sfk dir/stat mydir +view now shows stats in dview.
   -  add: sfk list -withhead now passes header infos
           like 'listing n of n files' to command chain.
   -  add: sfk dir/big/late full colored +view support.
   -  add: sfk syncnames, heuristic file name change sync.
   -  add: sfk calc: experimental brackets support.
   -  add: sfk time: option -strfpat to use strftime format.
   -  add: sfk date: just show the current date.
   -  add: sfk batch on linux/mac: now does chmod +x on the
           created batch.
   -  add: sfk alias, mkcd on linux: detailed help in case
           of error how to use it.
   -  add: sfk alias, mkcd on linux: if done using sudo then
           the batch file owner is now set to the normal user.
   -  add: sfk sft: ~ as alias for localhost
   -  fix: sfk ftp/sft missing error text with single file.
   -  fix: sfk ... +view color of warnings was unreadable yellow,
           now it is magenta like the sfk white background scheme.
   -  fix: dir, snapto: wrong typed options caused to select
           all files of current folder.
   -  fix: -fileset: memory leaks on multiple use
           in subsequent commands.
   -  fix: sfk sel -fileset fname did not work.
   -  chg: warning "cannot read file stat" is now just "cannot read".
   -  doc: sft -showip
