jade.cmd should not always show a usage clause

Current Situation

• The JADE startscript on Windows always shows a usage clause.

Desired Situation

• The JADE startscript on Windows shows a usage clause only if it is started without any argument or if the first argument is /?, -h, --help

Workaround

• Edit the JADE start script (.\bin\jade.cmd and .\bin\jade4dmz.cmd). Add a line with the command goto banner in line 13:

  ...
  set /A LASTARGHASDASH=0
  goto banner
  :hidePassw
  set JADE_ARG=%1
  ...