requires that some ordering requirements are checked by the
back-end C code instead of the parser (dirspecs, maxpart).
* Be more careful to require newline tokens in the grammer where
they are expected, and deal with blank lines, etc. This allows
elimination of a trailing context on newline in the scanner.
* Let the parser set values for "needs-count" and "needs-flag"
instead of making those special cases in the scanner.
* Get rid of '= ' preceeding actions (obsolete yacc syntax)
* Make the scanner not insert an extra newline after includes.
(It was just an accidental side-effect of the ENDFILE stuff.)