start 'classic' branch with 1-based line addresses
and inclusive line address ranges, like classic Unix ed, unlike Python
ed0.py: convert to classic ed index and range conventions
where index of first line is 1 and range i,j includes the second line j
also revise ed.py and test_ed to match
precursors.md: add Emacs standalone on Linux kernel
revise tests to work with classic ed coventions
for line numbers and ranges
also save test output in .log files for easy comparison with test later