Suggestion for modifying SRGS: ABNF Token

Suggests for modification to SRGS1.0:

In Appendix D: Formal Syntax for Augmented BNF Form Grammars, it says that
a Token is defined to be a Nmtoken | DoubleQuotedCharacters. From a
speech-recognition perspective, this doesn't really make sense. The XML
specifiction for Nmtoken was not designed for this purpose, and does not
fit it particularly well. In particular, if you want to use a contraction
or possessive as a speech token, you would need to quote it according to
this specification. I propose that the allowable unquoted tokens be any
sequence of non-white-space characters that might not otherwise have
syntactic significance, to whit:

Any sequence of non-white-space characters not from the following set:

$<>()|/[]{}!*+?~:;\

- Dean Sturtevant