0.87: fix off-by-one bug in words with character encoded like o"
0.86: now GPLv2 _and_ GPLv3
0.85: fix ligature removement of two or more ligatures/word, words like
"zweifle" keep their ligature now: the l must be considered to
belong to the word stem, just the e is left out, new words
0.84: UTF-8 support, additional --long option support, interactive mode,
new words
0.83: some new words, [aou]e as replacement for [äöü] now accepted
0.82: updated list of words, quiet mode and filter mode for streaming added
0.81: >130 new words known, words with trailing "' for example are now
correctly recognized, `ss' as replacemant for `ß' is recognized (for
Swiss language -- they don't use any `ß')
0.80: first public release