Initial UI change for completed operations

UI changes:
  Operations that have completed, are now cleared from the terminal's
  screen, with a small visual indicator of how many items were
  successfully operated on and how many of those items failed or have
  issues worth investigating.

  The goal with these changes are to keep the summary of operations
  cleaner and only show the status of the operation(s) ran, not the
  amount of issues found.

__test():
  Fixed missing item displaying in log file if an error was found.

Operations:
  '-e, --extract-artwork' is now included with the '-L, --reallyall'
  meta operation.

Man/help:
  Added documentation reflecting the additon of '-e, --extract-artwork'
  to the '-L, --reallyall' operation.