RE: [i161] Base for first-byte-pos, last-byte-pos, suffix-length

Julian Reschke wrote:
> ticket 161 says:
> 
> "Add a note at the beginning that all numbers not other wise declared
> are in base 10 decimal."

Anything specified as DIGIT* is unambiguously a sequence of decimal digits
by the definition of DIGIT ("decimal 0-9") from part 1. The note about
Content-Length should be removed since that is what is causing confusion.

> Also, should this note go into all seven parts?

Every part that defines syntax has to reference part 1 where DIGIT is
defined, so having the definition in part 1 only makes sense.

- Brian