Setup version in setup.log

[Brian Keener]

Michael A. Chase wrote:
> It would make it easier to track some of the problems with setup.exe if it
> wrote it's version as part of the startup message in setup.log
>
Good idea - probably wouldn't hurt either if it the version got written to 
setup.log.full as well.  Oops there I go making suggestions instead of 
contributions.  That was really 'a while you're there' kind of comment. ;-)

bk