Bug fixes and small improvements

• BNFC now uniformly signs generated files with its version number [#373]
• C/C++: include stdio.h in parser header files [#381]
• C++: fixed parser regression in 2.9.2: missing #include <algorithm> [#377]
• Ocaml: lex CR as whitespace [see also #376]
• Ocaml: correct position in parse errors [#380]
• Ocaml/Haskell: make printer for lists categories total [#383]

64bit binaries for Linux, macOS, and Windows below.