(*string-value*): New variable.
(string-value): New function.
(*exponent-char*, *force-exponent*): New variable.
(get-values): New optional argument relax to control
formatting of floating-point numbers.
(wash-number): Use *exponent-char* and *force-exponent*.
(define-constant): Values are given as strings.
Regenerate file.
Update version number.