Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo. Avoids needing to
repeatly update.
Also updates AUTHORS.txt from current repo with contributor names
This drags in dsnlexer.h to everything that uses EMBEDDED_FILES, but the
parser is actually only used in two files. It's not the only thing to
drag it in, though.
Currently, touching dsnlexer.h rebuilds nearly 800 files, when it
actually is needed by about 50 at most.