Major changes

• New license: BSD 3-clause [#308]
• LBNF: removed delimiters pragma [#308]
• Haskell: removed options --alex1, --alex2, --sharestrings, --profile, and --cnf [#265]
• C#: backend removed [#265]

Bug fixes

• LBNF: allow list categories in entrypoints pragma [#306]
• LBNF: report clashes between token and ordinary categories [#323]
• C: strdup is not part of C89 standard, _POSIX_C_SOURCE required [#318]
• C/C++: fixed buffer overrun in String literal lexer [#316]
• C++: fixed regressions (one of them #310) introduced by #288
• C/C++/OCaml: allow unicode characters in token definitions [#324]
• C/OCaml: sanitize grammar file names [#325]
• Java/ANTLR: removed superfluous quotation in lexer character sets [#319]