Pre-release 20.5.0.rc1 for upcoming version 20.6.0

2021-10, Improvements, extensions and bug fixes

• Implemented batch runs with the current script (now C-c C-y) and
  jobname.out inspection (now C-c C-o).
• Add new keyinding C-c C-n for apdl-no-of-processors
• Improved highlighting of user variables
• Enhanced abbreviations, for example "`ss" (interactive
  section-separator).
• Improved and updated documentation, for example see the pdf
  version of the introductory tutorial
• Added customisation section for user templates
• Outline-minor-mode is now activated by default, with +
  (Emacs 28.1) its folding features became even more helpful
  for larger macro files
• apdl-start-classic and -start-launcher are now auto-loaded
  commands (They can be run from the mini buffer (M-x), without
  having a file under `apdl-mode')