New xmltooling 1.6.3

[Cantor, Scott]

> I didn't think it was worth diverging from the upstream version info,
> even if the pedantically correct numbering scheme dictates that.  Of
> course we can do that if you recommend so, but it would be nice if we
> could drop the delta on an eventual 1.6.4 release.

Entirely up to you certainly.

> By the way, do you plan to team the upcoming SP 3 release with a new
> major XMLTooling release as well?

Yes, everything will be synced to 3.0 to start with and the API has already diverged.

-- Scott