version 0.153 - further, minor updates
version 0.154
0.156
0.156
0.156a
0.156a
0.156b

added file .gitignore
0.156c

very minor tweaks
0.156c
0.156c
0.156c
0.156c
0.157
0.157a
0.158
0.158b
0.159

Found a kludgy but effective solution for problems that arise if
there's a character with an Umlaut (dieresis) in the first part of the
replacement string of \nolig command.
0.160

much more extensive list of \nolig macros for f-ligatures in German
words, thanks to a very thorough list of test words kindly provided by
Matthias Vogel
Update .gitignore

added .new and .old as filename extensions
Update README.md